How do I delete a subscribed calendar on my iPhone?

How to Remove a Calendar Subscription in iOS 11
  1. Launch the Settings app on your iPhone or iPad.
  2. Tap Accounts & Passwords.
  3. Tap Subscribed Calendars.
  4. Tap the calendar subscription you want to remove.
  5. Tap Delete Account.

How do I unsubscribe from spam calendars on iPhone?

How to remove calendar spam on your iPhone
  1. Make sure that you’re using the latest version of iOS.
  2. Open the Calendars app.
  3. Tap the unwanted Calendar event.
  4. Tap Unsubscribe from this Calendar at the bottom of the screen.
  5. To confirm, tap Unsubscribe.

How do I delete a subscribed calendar iOS 14?