The Princess Royal stepped in for the King at the Sovereign's Parade at the Royal Military Academy Sandhurst on Friday, with the occasion coinciding with a personal milestone.

Anne, 75, made a solo appearance at the prestigious military academy, arriving by helicopter with her royal aides.

She was not joined by her husband, Vice Admiral Tim Laurence, despite the pair marking their 33 rd wedding anniversary on Friday.

The couple tied the knot at Crathie Kirk near the royal family's Scottish estate Balmoral on 12 December 1992, as the Church of Scotland permitted second marriage for divorcees. Anne was previously married to Captain Mark Phillips from 1973 to 1992, with whom she shares her children – Peter Phillips and Zara Tindall.

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