Serena Williams clinched her third Wimbledon title and 11th Grand Slam crown with a 7-6 (7/3), 6-2 victory over sister Venus, the defending champion, in London on Saturday.
The victory added to her 2002 and 2003 wins at the All England Club and shattered Venus's hopes of a hat-trick of titles and sixth overall which would have taken her level with Billie Jean King.
Saturday's final was the fourth all-Williams title match-up at Wimbledon and eighth in all Grand Slams with the win giving Serena the edge in head-to-head meetings at 11-10.
Serve dominated the first set with 27-year-old Serena fighting off the only two break points in the eighth game and it was the younger of the two sisters who seized control of the tiebreak.
Serena went to three set points by forcing Venus to scramble from side to side before putting away a powerful crosscourt forehand.
Venus saved the first set point but was powerless when a pinpoint lob from her sister left her stranded at the net.
It was the first set Venus had dropped at Wimbledon since the third round in 2007, a run of 34 consecutive winning sets.
Serena, who had saved match point in her marathon semi-final win over Elena Dementieva, carved out her first set point when Venus double-faulted to hand her a 4-2 lead and revenge for last year's final defeat to her sister looked likely.
Second seed Serena held to love, backed-up by her 12th ace of the match, to lead 5-2.
She then wasted three match points in the eighth game but clinched the title when Venus netted with a forehand.