diff --git a/apps/dav/composer/composer/autoload_classmap.php b/apps/dav/composer/composer/autoload_classmap.php
index a1daa2593e5b5..c8e7ffdc419e9 100644
--- a/apps/dav/composer/composer/autoload_classmap.php
+++ b/apps/dav/composer/composer/autoload_classmap.php
@@ -257,6 +257,12 @@
     'OCA\\DAV\\Events\\CalendarCreatedEvent' => $baseDir . '/../lib/Events/CalendarCreatedEvent.php',
     'OCA\\DAV\\Events\\CalendarDeletedEvent' => $baseDir . '/../lib/Events/CalendarDeletedEvent.php',
     'OCA\\DAV\\Events\\CalendarMovedToTrashEvent' => $baseDir . '/../lib/Events/CalendarMovedToTrashEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectCreatedEvent' => $baseDir . '/../lib/Events/CalendarObjectCreatedEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectDeletedEvent' => $baseDir . '/../lib/Events/CalendarObjectDeletedEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectMovedEvent' => $baseDir . '/../lib/Events/CalendarObjectMovedEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectMovedToTrashEvent' => $baseDir . '/../lib/Events/CalendarObjectMovedToTrashEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectRestoredEvent' => $baseDir . '/../lib/Events/CalendarObjectRestoredEvent.php',
+    'OCA\\DAV\\Events\\CalendarObjectUpdatedEvent' => $baseDir . '/../lib/Events/CalendarObjectUpdatedEvent.php',
     'OCA\\DAV\\Events\\CalendarPublishedEvent' => $baseDir . '/../lib/Events/CalendarPublishedEvent.php',
     'OCA\\DAV\\Events\\CalendarRestoredEvent' => $baseDir . '/../lib/Events/CalendarRestoredEvent.php',
     'OCA\\DAV\\Events\\CalendarShareUpdatedEvent' => $baseDir . '/../lib/Events/CalendarShareUpdatedEvent.php',
diff --git a/apps/dav/composer/composer/autoload_static.php b/apps/dav/composer/composer/autoload_static.php
index 31e9c9afd7ae6..7b18a49d1e3ff 100644
--- a/apps/dav/composer/composer/autoload_static.php
+++ b/apps/dav/composer/composer/autoload_static.php
@@ -272,6 +272,12 @@ class ComposerStaticInitDAV
         'OCA\\DAV\\Events\\CalendarCreatedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarCreatedEvent.php',
         'OCA\\DAV\\Events\\CalendarDeletedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarDeletedEvent.php',
         'OCA\\DAV\\Events\\CalendarMovedToTrashEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarMovedToTrashEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectCreatedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectCreatedEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectDeletedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectDeletedEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectMovedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectMovedEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectMovedToTrashEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectMovedToTrashEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectRestoredEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectRestoredEvent.php',
+        'OCA\\DAV\\Events\\CalendarObjectUpdatedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarObjectUpdatedEvent.php',
         'OCA\\DAV\\Events\\CalendarPublishedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarPublishedEvent.php',
         'OCA\\DAV\\Events\\CalendarRestoredEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarRestoredEvent.php',
         'OCA\\DAV\\Events\\CalendarShareUpdatedEvent' => __DIR__ . '/..' . '/../lib/Events/CalendarShareUpdatedEvent.php',
diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index 81e999cc35655..e5b30653d450d 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -19,6 +19,12 @@
 use OCA\DAV\Events\CalendarCreatedEvent;
 use OCA\DAV\Events\CalendarDeletedEvent;
 use OCA\DAV\Events\CalendarMovedToTrashEvent;
+use OCA\DAV\Events\CalendarObjectCreatedEvent as LegacyCalendarObjectCreatedEvent;
+use OCA\DAV\Events\CalendarObjectDeletedEvent as LegacyCalendarObjectDeletedEvent;
+use OCA\DAV\Events\CalendarObjectMovedEvent as LegacyCalendarObjectMovedEvent;
+use OCA\DAV\Events\CalendarObjectMovedToTrashEvent as LegacyCalendarObjectMovedToTrashEvent;
+use OCA\DAV\Events\CalendarObjectRestoredEvent as LegacyCalendarObjectRestoredEvent;
+use OCA\DAV\Events\CalendarObjectUpdatedEvent as LegacyCalendarObjectUpdatedEvent;
 use OCA\DAV\Events\CalendarPublishedEvent;
 use OCA\DAV\Events\CalendarRestoredEvent;
 use OCA\DAV\Events\CalendarShareUpdatedEvent;
@@ -1355,6 +1361,7 @@ public function createCalendarObject($calendarId, $objectUri, $calendarData, $ca
 				$shares = $this->getShares($calendarId);
 
 				$this->dispatcher->dispatchTyped(new CalendarObjectCreatedEvent($calendarId, $calendarRow, $shares, $objectRow));
+				$this->dispatcher->dispatchTyped(new LegacyCalendarObjectCreatedEvent($calendarId, $calendarRow, $shares, $objectRow));
 			} else {
 				$subscriptionRow = $this->getSubscriptionById($calendarId);
 
@@ -1415,6 +1422,7 @@ public function updateCalendarObject($calendarId, $objectUri, $calendarData, $ca
 					$shares = $this->getShares($calendarId);
 
 					$this->dispatcher->dispatchTyped(new CalendarObjectUpdatedEvent($calendarId, $calendarRow, $shares, $objectRow));
+					$this->dispatcher->dispatchTyped(new LegacyCalendarObjectUpdatedEvent($calendarId, $calendarRow, $shares, $objectRow));
 				} else {
 					$subscriptionRow = $this->getSubscriptionById($calendarId);
 
@@ -1476,6 +1484,7 @@ public function moveCalendarObject(int $sourceCalendarId, int $targetCalendarId,
 				$targetShares = $this->getShares($targetCalendarId);
 				$sourceCalendarRow = $this->getCalendarById($sourceCalendarId);
 				$this->dispatcher->dispatchTyped(new CalendarObjectMovedEvent($sourceCalendarId, $sourceCalendarRow, $targetCalendarId, $targetCalendarRow, $sourceShares, $targetShares, $object));
+				$this->dispatcher->dispatchTyped(new LegacyCalendarObjectMovedEvent($sourceCalendarId, $sourceCalendarRow, $targetCalendarId, $targetCalendarRow, $sourceShares, $targetShares, $object));
 			}
 			return true;
 		}, $this->db);
@@ -1534,6 +1543,7 @@ public function deleteCalendarObject($calendarId, $objectUri, $calendarType = se
 					$shares = $this->getShares($calendarId);
 
 					$this->dispatcher->dispatchTyped(new CalendarObjectDeletedEvent($calendarId, $calendarRow, $shares, $data));
+					$this->dispatcher->dispatchTyped(new LegacyCalendarObjectDeletedEvent($calendarId, $calendarRow, $shares, $data));
 				} else {
 					$subscriptionRow = $this->getSubscriptionById($calendarId);
 
@@ -1583,6 +1593,14 @@ public function deleteCalendarObject($calendarId, $objectUri, $calendarType = se
 							$data
 						)
 					);
+					$this->dispatcher->dispatchTyped(
+						new LegacyCalendarObjectMovedToTrashEvent(
+							$calendarId,
+							$calendarData,
+							$this->getShares($calendarId),
+							$data
+						)
+					);
 				}
 			}
 
@@ -1642,6 +1660,14 @@ public function restoreCalendarObject(array $objectData): void {
 					$row
 				)
 			);
+			$this->dispatcher->dispatchTyped(
+				new LegacyCalendarObjectRestoredEvent(
+					(int)$objectData['calendarid'],
+					$calendarRow,
+					$this->getShares((int)$row['calendarid']),
+					$row
+				)
+			);
 		}, $this->db);
 	}
 
diff --git a/apps/dav/lib/Events/CalendarObjectCreatedEvent.php b/apps/dav/lib/Events/CalendarObjectCreatedEvent.php
new file mode 100644
index 0000000000000..1227b81e7730f
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectCreatedEvent.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class CalendarObjectCreatedEvent
+ *
+ * @package OCA\DAV\Events
+ * @since 20.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectCreatedEvent} instead
+ */
+class CalendarObjectCreatedEvent extends Event {
+
+	/**
+	 * CalendarObjectCreatedEvent constructor.
+	 *
+	 * @param int $calendarId
+	 * @param array $calendarData
+	 * @param array $shares
+	 * @param array $objectData
+	 * @since 20.0.0
+	 */
+	public function __construct(
+		private int $calendarId,
+		private array $calendarData,
+		private array $shares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 20.0.0
+	 */
+	public function getCalendarId(): int {
+		return $this->calendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getCalendarData(): array {
+		return $this->calendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getShares(): array {
+		return $this->shares;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}
diff --git a/apps/dav/lib/Events/CalendarObjectDeletedEvent.php b/apps/dav/lib/Events/CalendarObjectDeletedEvent.php
new file mode 100644
index 0000000000000..abbcaf21344e7
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectDeletedEvent.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class CalendarObjectDeletedEvent
+ *
+ * @package OCA\DAV\Events
+ * @since 20.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectDeletedEvent} instead
+ */
+class CalendarObjectDeletedEvent extends Event {
+
+	/**
+	 * CalendarObjectDeletedEvent constructor.
+	 *
+	 * @param int $calendarId
+	 * @param array $calendarData
+	 * @param array $shares
+	 * @param array $objectData
+	 * @since 20.0.0
+	 */
+	public function __construct(
+		private int $calendarId,
+		private array $calendarData,
+		private array $shares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 20.0.0
+	 */
+	public function getCalendarId(): int {
+		return $this->calendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getCalendarData(): array {
+		return $this->calendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getShares(): array {
+		return $this->shares;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}
diff --git a/apps/dav/lib/Events/CalendarObjectMovedEvent.php b/apps/dav/lib/Events/CalendarObjectMovedEvent.php
new file mode 100644
index 0000000000000..b5252ebc9e0bd
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectMovedEvent.php
@@ -0,0 +1,91 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class CalendarObjectMovedEvent
+ *
+ * @package OCA\DAV\Events
+ * @since 25.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectMovedEvent} instead
+ */
+class CalendarObjectMovedEvent extends Event {
+	/**
+	 * @since 25.0.0
+	 */
+	public function __construct(
+		private int $sourceCalendarId,
+		private array $sourceCalendarData,
+		private int $targetCalendarId,
+		private array $targetCalendarData,
+		private array $sourceShares,
+		private array $targetShares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 25.0.0
+	 */
+	public function getSourceCalendarId(): int {
+		return $this->sourceCalendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 25.0.0
+	 */
+	public function getSourceCalendarData(): array {
+		return $this->sourceCalendarData;
+	}
+
+	/**
+	 * @return int
+	 * @since 25.0.0
+	 */
+	public function getTargetCalendarId(): int {
+		return $this->targetCalendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 25.0.0
+	 */
+	public function getTargetCalendarData(): array {
+		return $this->targetCalendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 25.0.0
+	 */
+	public function getSourceShares(): array {
+		return $this->sourceShares;
+	}
+
+	/**
+	 * @return array
+	 * @since 25.0.0
+	 */
+	public function getTargetShares(): array {
+		return $this->targetShares;
+	}
+
+	/**
+	 * @return array
+	 * @since 25.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}
diff --git a/apps/dav/lib/Events/CalendarObjectMovedToTrashEvent.php b/apps/dav/lib/Events/CalendarObjectMovedToTrashEvent.php
new file mode 100644
index 0000000000000..548824e17cb03
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectMovedToTrashEvent.php
@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * @since 22.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectMovedToTrashEvent} instead
+ */
+class CalendarObjectMovedToTrashEvent extends Event {
+
+	/**
+	 * @param int $calendarId
+	 * @param array $calendarData
+	 * @param array $shares
+	 * @param array $objectData
+	 * @since 22.0.0
+	 */
+	public function __construct(
+		private int $calendarId,
+		private array $calendarData,
+		private array $shares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 22.0.0
+	 */
+	public function getCalendarId(): int {
+		return $this->calendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getCalendarData(): array {
+		return $this->calendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getShares(): array {
+		return $this->shares;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}
diff --git a/apps/dav/lib/Events/CalendarObjectRestoredEvent.php b/apps/dav/lib/Events/CalendarObjectRestoredEvent.php
new file mode 100644
index 0000000000000..29e7148225d25
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectRestoredEvent.php
@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * @since 22.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectRestoredEvent} instead
+ */
+class CalendarObjectRestoredEvent extends Event {
+
+	/**
+	 * @param int $calendarId
+	 * @param array $calendarData
+	 * @param array $shares
+	 * @param array $objectData
+	 * @since 22.0.0
+	 */
+	public function __construct(
+		private int $calendarId,
+		private array $calendarData,
+		private array $shares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 22.0.0
+	 */
+	public function getCalendarId(): int {
+		return $this->calendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getCalendarData(): array {
+		return $this->calendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getShares(): array {
+		return $this->shares;
+	}
+
+	/**
+	 * @return array
+	 * @since 22.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}
diff --git a/apps/dav/lib/Events/CalendarObjectUpdatedEvent.php b/apps/dav/lib/Events/CalendarObjectUpdatedEvent.php
new file mode 100644
index 0000000000000..01d684dc6b233
--- /dev/null
+++ b/apps/dav/lib/Events/CalendarObjectUpdatedEvent.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Events;
+
+use OCP\EventDispatcher\Event;
+
+/**
+ * Class CalendarObjectUpdatedEvent
+ *
+ * @package OCA\DAV\Events
+ * @since 20.0.0
+ * @deprecated 31.0.2 Use {@see \OCP\Calendar\Events\CalendarObjectUpdatedEvent} instead
+ */
+class CalendarObjectUpdatedEvent extends Event {
+
+	/**
+	 * CalendarObjectUpdatedEvent constructor.
+	 *
+	 * @param int $calendarId
+	 * @param array $calendarData
+	 * @param array $shares
+	 * @param array $objectData
+	 * @since 20.0.0
+	 */
+	public function __construct(
+		private int $calendarId,
+		private array $calendarData,
+		private array $shares,
+		private array $objectData,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return int
+	 * @since 20.0.0
+	 */
+	public function getCalendarId(): int {
+		return $this->calendarId;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getCalendarData(): array {
+		return $this->calendarData;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getShares(): array {
+		return $this->shares;
+	}
+
+	/**
+	 * @return array
+	 * @since 20.0.0
+	 */
+	public function getObjectData(): array {
+		return $this->objectData;
+	}
+}