Kate Middleton and Prince William Credit: Pascal Le Segretain/Getty

Talk about family support!

Kate Middleton, her husband Prince William and his brother Prince Harry blocked off time in their busy schedule to support Zara Phillips during day two of the three-day equestrian competition at the 2012 London Olympics on Monday.

Wearing coordinating "Team GB" garb to support their cousin as she prepped for the difficult cross country showing, Prince William, 30, sported a navy blue shirt and sunglasses while Duchess Kate, 30, teamed her white tee with dark skinny jeans and a tailored blazer.

Prince Harry, 27, matched his brother's patriotic look as he sat in the stands with his family members, which also included his stepmother, Camilla, Duchess of Cornwall.

On Sunday, Phillips, 31, and her horse, High Kingdom, were supported by her mother, Princess Anne, who was decked out in Olympic fan gear, and her grandfather, the Duke of Edinburgh, while competing in the Dressage portion of the competition. After one slip-up, Phillips and High Kingdom pulled through will flying colors.

"It was disappointing about his first change, but his other ones were really good," Phillips said of her horse, post-show. "But he coped with all the crowd and is only getting better."