Senior civil servant Olly Robbins has today received his knighthood after being included in Theresa May’s resignation honours list last year.
The former chief Brexit negotiator and Europe adviser to the then-Prime Minister was made a Knight Commander of the Order of St Michael for public service.
Sir Oliver was part of the team that helped come up with Mrs May’s Brexit deal, which was rejected by Parliament three times.
Mrs May handed out 41 honours, many for public or political service, and 21 peerages when she left Downing Street.
Also featured on the list was Metropolitan Police Commissioner Cressida Dick, who was made a Dame.
Former US Ambassador Sir Kim Darroch, who was forced to resign after an email leak, was given a cross-bench peerage.
Prince William carried out the investiture ceremony at Buckingham Palace.
Andrew Strauss also received a knighthood
Also receiving their awards today were cricket star Andrew Strauss and FA vice chair David Gill.
Newly knighted Sir Andrew praised England's Cricket World Cup "heroes", and credited last summer's tournament with "enticing" more people to the sport.
He said: "That World Cup victory on home soil did everything we hoped it might, it reached a broader section of the public, and the way that game panned out."
Mr Gill, who was collecting a CBE, revealed after the ceremony that he had chatted to the future king about his concerns over his beloved football team.
The former Manchester United chief executive said: “I’ve been lucky enough to meet (William) a few times and talk about football, he was more worried about Aston Villa and how they're going to finish this season.”
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