The emotion prompted by the 7-6, 6-2 defeat proved too much for Zvonareva, who had been thumped 6-3, 6-2 by world number one Williams earlier in the day, and she burst into tears as she returned to her chair on Centre Court.
After American King and Kazakh Shvedova, playing in only their third tournament together, took the first-set tiebreak, the Russians folded quickly. Zvonareva was broken to 15 to go 1-2 down in the second set and then it was Vesnina's turn as their opponents dominated the net to speed to a 4-1 lead.
With a smile on her face, King served for the match and rushed to hug her partner after Vesnina sent a returnlong. After the victorious two embraced, they waved to their delirious entourage before accepting their trophies.
Shvedova, the world number 29 in singles and a quarterfinalist at the French Open this year, is the first Kazakh to win a Wimbledon title of any kind.
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