Follow the steps below to delete multiple events from a specific location in Microsoft calendar:

1. Open Calendar in Microsoft.
2. Click the View tab.
3. Find and select Change View,
   and select List from the drop-down menu.
4. Type location in the search box.
5. Select the check box on the left side of the event you want to delete.
6. Choose Delete from the Events menu.
7. Check the box next to All Events in Series if you'd like to delete all
   related events from the same location.
8. Press OK to complete the deletion.