Cant delete iCal calendar
I subscribed to a calendar a couple years ago but it is no longer relevant and I want to delete it from my list of calendars in iCal. I keep trying to delete it, but after a couple of minutes it reappears. How can I really delete this calendar? Is there a way to "unsubscribe" from subscribed calendars, other than the "delete" function? If I have calendars connected with my iPone via iCloud, do I have to delete it on both devices?
iMac (27-inch Late 2009), OS X Mountain Lion (10.8.5)