VATICAN CITY - Queen Elizabeth II met Pope Francis for the first time on Thursday on a visit that coincides with the anniversary of the Falklands War and is also the 87-year-old monarch's first foreign trip since 2011.
Dressed in lilac and clutching a bouquet of flowers, the queen smiled as she arrived at Ciampino airport, shaking hands with dignitaries on the red carpet.
She and her husband Prince Philip then had lunch with Italian President Giorgio Napolitano at the Quirinale Palace, where they were greeted with a military salute and crowds of supporters, some waving Union Jack flags.
Wearing one of her trademark hats decorated with flowers, and with a black purse over her arm to match her shoes, the monarch looked pleased to see the 88-year-old president.
The British royals were then seen arriving at the Vatican for the private audience with Francis in a room next to the Paul VI auditorium in the Vatican, with hundreds of people cheering as their car drove in.
The queen's talks with the Argentine pope come a day after the 32nd anniversary of the start of the Falklands War between Britain and Argentina and come amid thorny Anglican-Catholic relations.
But British officials have played down the prospect of any contentious issues on the agenda as the queen, the "supreme governor" of the Church of England, holds talks with the head of the world's Catholics.
Britain's ambassador to the Holy See Nigel Baker told Vatican radio that there had been "extraordinary" progress in Britain-Vatican and Anglican-Catholic relations since the Queen's coronation in 1952.
"She will want I think to understand from Pope Francis how he sees the role of faith in the world," he said.
On the Falklands War, he said: "The Vatican has been clear with us, including in the last week and at a very senior level, that their long-standing position of neutrality on this issue remains in force".
Vatican spokesman Federico Lombardi said the meeting was "very informal". Francis will be the fifth pope the queen has met, starting with Pius XII in 1951 when she was still a princess.
She has also met John XXIII, John Paul II and pope emeritus Benedict XVI, who stepped down last year.