Cannot remove OTHER calendar that I didn't subscribed

Weird, yes.

I suggest that you contact Apple Support directly and explain your problem, using this link:--> Contact Apple for support and service or make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.

sachagrin wrote:

Hello,

I have a weird calendar that I don't remember subscribing presented on my phone with no option of remove.

When I select the option from this calendar, there is no DELETE option. How can I remove this one?

That is the built in Holidays in Israel (translated from Hebrew) calendar. It cannot be deleted. Apple includes a Holidays calendar specific to each region and country; in the US we have the US Holidays calendar, for example. If you don’t want it to appear in your calendar display just uncheck it.

See these instructions about that:--> Delete spam calendars and events on iPhone

Regards

Giulio

Try opening Settings>Calendar>Accounts... search for the rogue calendar account you accidentally subscribed to, then delete it.

Regards

Giulio

What do you see in Settings>Calendar>Accounts... tapping on it?

I didn't know about that. Thanks for your clarification/assistance, Lorenzo.

Giulio