Prince Charles and Camilla to meet Barack Obama in US
The Prince of Wales and Duchess of Cornwall are to meet US President Barack Obama during a four-day tour of the US.
The White House said Mr Obama will host the royal couple in the Oval Office on 19 March.
They will be in the US from 17 to 20 March to "promote the UK's partnership with the United States", Clarence House said.
They will also mark the Magna Carta's 800th anniversary during their trip.
Other parts of their tour will include a tour of Mount Vernon - home of America's first president, George Washington - and a visit to Louisville, Kentucky, home city of legendary boxer Muhammad Ali.
While in Washington DC, the prince will mark the Magna Carta's anniversary during a visit to the National Archives.
He will view the Charters of Freedom documents and the 1297 version of the Magna Carta, which is embodied in the American Bill of Rights and the Constitution.
Prince Charles will also receive an award for "exceptional leadership in conservation" from the International Conservation Caucus Foundation.
Also in the US capital, the prince and duchess will visit the Armed Forces Retirement Home, set in the same grounds as the Lincoln Cottage, where it is believed Abraham Lincoln wrote the last draft of the Emancipation Proclamation.
The duchess, who has regularly raised awareness about rape victims, will carry out several solo engagements, including visiting the District of Columbia's sexual assault response team.
This is a coalition of 12 public and private community agencies which works to prevent sexual assault and help victims of such crimes.
And she will visit a food literacy project for young people at a local farm while in Louisville, which will be where the couple end their trip.
The Prince of Wales visited the Oval Office in 2011 to discuss energy and environmental issues with Mr Obama.