He lost his Senate seat last year, but Richard Lugar will soon gain knighthood.
The Indiana Republican will be given the honorary title of Knight Commander of the Most Excellent Order of the British Empire on Tuesday, the Lugar Center announced.
Sir Peter Westmacott, the British Ambassador to the United States, will preside over the ceremony, which is being held at the British Embassy in Washington.
Because he is not a royal subject, Lugar will not be given the title of "sir."
Lugar, known for reaching across the aisle to craft foreign policy, lost in last year's Republican primary to the more conservative former congressman Richard Mourdock. Mourdock went on to lose in the general election to Democrat Joe Donnelly. Lugar, a 36-year veteran of the Senate, has since joined the German Marshall Fund.