Kate Middleton has returned to royal duties, and her Together at Christmas service was her biggest event of the year. However, one royal was noticeably absent from the audience.

Kate Middleton's family rallied around her at her Together at Christmas carol service after her "tough" year navigating cancer. See which Middletons and royals went.

Kate Middleton with a heartwarming Christmas carol service at Westminster Abbey last week. She was joined by Prince William and their three children. However, this year's event was different as it was her most significant public appearance since finishing chemotherapy in September after a challenging year of health struggles.