10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations match in February, while Alain Rolland is also included in the Elite Panel in what is his last season.
The Irish contingent included Brian O'Driscoll and his wife Amy Huberman, while Jamie Heaslip tweeted a picture of his date for the day - fellow Lion Sean O'Brien.
At the reception in Downing Street there was a special presentation of Jonathan Sexton's number 10 Lions jersey.
British & Irish Lions Chief Executive John Feehan paid tribute to the class of 2013, revealing his pride at their invitation to Downing Street.
"We are extremely proud of what the Lions achieved over the summer, becoming the first touring party to win a series for 16 years," said Feehan.
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