Prince William and Princess Kate have paid tribute to the British man killed in the New Orleans terror attack after it was revealed he was the stepson of a former royal nanny.

The aunt of former Princeton University football player Martin "Tiger" Bech says "God is so present" as the family mourns the loss of her nephew.

Jack Bech led the tributes to his brother, Tiger, on Wednesday after it was revealed the former college football player was among those killed in the New Orleans terror attack.

Tiger Bech, 27, a former Princeton football player, was killed in the New Year’s Day Bourbon Street attack. His Louisiana community gathered to honor his memory.