Sophie Hosking, from Wimbledon, was also awarded an MBE for services to rowing.
The athlete, who won gold in the Lightweight Women's Double Scull at London 2012, learned to row at school in Kingston and now trains at the London Rowing Club in Putney.
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Police investigating the murder of a grandfather from West Ham have arrested a second man on suspicion of murder.
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A restaurant where pets and their owners can share a meal together has opened just in time for Valentine's Day.