American twins Bob and Mike Bryan became the first doubles team to hold all four Grand Slam titles in the Open era when they won Wimbledon for the third time on Saturday.
The top seeds beat Croatia's Ivan Dodig and Marcelo Melo of Brazil 3-6, 6-3, 6-4, 6-4.
The brothers, taking part in their 25th Grand Slam final, had also won the Olympics in 2012.
They now have 15 men's doubles titles at the Grand Slams and extended their winning streak to 24 matches.
Ken McGregor and Frank Sedgman are the only pair to have completed the calendar Grand Slam back in the pre-Open era of 1951.