He’s also visited with a lot of important people.

Charles and Obama’s conversation included some friendly banter.

Everybody’s so friendly" (viaCBS News).

Prince Charles and Barack Obama smiling

The men laughed and Charles said, “That’s awfully nice to know.”

With a smile, Charles replied, “I don’t believe that.”

Charles also talked about enjoying his visit to Mount Vernon, a monument he had visited in the ’70s.

King Charles III talking to Barack Obama

During Charles' 2011 visit to the U.S., the men were photographed in the same spot.

During a speech, Queen Elizabeth welcomed them and mentioned their first meeting in 2009.

To the Queen" (viaObama White House).

Barack Obama smiling at Queen Elizabeth II

Obama shared nothing but praise for Queen Elizabeth after her death.