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Queen Elizabeth II rings in her 86th birthday today, Apr. 20! So, how did the British Royal celebrate?

OK! NEWS: QUEEN ELIZABETH II GOES TO COLLEGE IN CAMBRIDGE

E! Online reports that the monarch opted for a mellow Saturday with her loved ones at Windsor Castle instead of a lavish affair.

There was no getting around the 21-gun salute the Queen recieved earlier in the day, a custom on birthdays at the palace.

OK! NEWS: PRINCE HARRY ATTENDS BLOCK PARTY IN BELIZE REPRESENTING QUEEN ELIZABETH II

The Mayfair native will celebrate her big day publically on Jun. 16 at the Trooping the Colour ceremony.

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