Queen Elizabeth II meets Joe Biden, the 13th US president she has hosted in her lifetime (photos)

The world\’s longest serving monarch, Queen Elizabeth II had a private audience with Joe Biden at Windsor Castle on Sunday, June 13, making Biden the 13th US leader the queen has met in her lifetime.

Biden stood next to the queen in the sunshine, wearing his aviator sunglasses, before inspecting the troops in the quadrangle of Windsor Castle.

Biden, who first met the queen in 1982 as a Democratic senator from Delaware, said after the meeting that she was \”extremely gracious.\”

\”I don\’t think she\’ll be insulted, but she reminded me of my mother,\” Biden said as he boarded Air Force One, remarking on \”the look of her and the generosity.\” Biden also confirmed that he invited her to visit the White House.

Biden is the 13th serving president Elizabeth has met. As queen, she has met every serving president since Dwight D. Eisenhower — except Lyndon B. Johnson, who did not travel to Britain while in office. As a 25-year-old princess in 1951, she also stayed with President Harry S. Truman and his family in Washington.