Photos: Kate Middleton, Prince William make appearances at Wimbledon Britain's Catherine, Duchess of Cambridge, her father Michael Middleton and Scott Lloyd, CEO of the Lawn Tennis Association, take part in a "wave" as they watch Britain's the Gordon Reid play against Belgium's Joachim Gerard in the final of the Gentlemen's Wheelchair Singles on the 13th day of the 2021 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on July 11, 2021. (ADRIAN DENNIS/AFP via Getty Images)