New Delhi, July 29 -- LONDON - Prince William and Princess Kate posted a summer photo carousel to Kensington Palace's Instagram account on Tuesday, marking what the caption called a "special" stretch of months with images spanning Royal Ascot, the Three Peaks Challenge, a family portrait on the grass with their three children, and a tribute to David Attenborough at his 100th birthday celebration.

a family that has weathered something significant making the argument, in photographs rather than press statements, that it has come through.

The most closely examined image in the carousel is one that had already been seen. A photograph of William and Kate lying on the grass with their three children, Prince George, 13, Princess Charlotte, 11,...