LONDON — Queen Elizabeth II attended a double christening on Sunday for two of her great-grandchildren. The 95-year-old British monarch, who has canceled several recent public appearances on her doctors’ advice, watched the baptisms of August, son of Princess Eugenie and her husband Jack Brooksbank, and Lucas Philip, son of Zara Tindall and her husband Mike Tindall.

The private service at the Royal Lodge in Windsor Great Park, west of London, was attended by members of the royal family and close friends.

August was born in February and Lucas in March. Both boys’ mothers are granddaughters of the queen. The queen has 12 great-grandchildren.