You can delete any event that you have permissions to. You will need to find the event and then select the Delete Event option.
Finding an Existing Event
Select the List Events option for Calendars.
You can then find the event by filtering events using any of the following:
- Event Title
Delete Event Option
From the List Calendar Events, select the gear to the right of the Event Title and select the Delete option.
You will be presented with the event information and you will need to confirm the deletion by checking the Confirm Delete box and then selecting the Delete button.