The Duke and Duchess of Cambridge want to "create new memories" of the Taj Mahal when they visit the place where William's mother, Diana, defined her own loneliness.
The Duke "cannot wait" to visit India's most famous building this month because it is a place where "his mother's memory is kept alive", his spokesman said.
The Princess of Wales visited the Taj Mahal alone in 1992 when she and Prince Charles were on a tour of India.
She was famously pictured sitting on a bench in total isolation as she dropped the first hints that the couple's marriage was in trouble.
She had been expected to go there with her husband, but the Prince decided to attend another engagement, and she pressed on alone.