Pope Benedict XVI is to meet King Abdullah of Saudi Arabia next week in the first talks between a Saudi monarch and a Pope.

The Vatican said the uprecedented meeting would take place at the Vatican on Tuesday. King Abdullah has been paying a visit to Britain as part of a European tour. The Pope has sought to promote Christian-Muslim dialogue, and last month October opened a three day inter faith conference at Naples which included Muslim representatives.

The Vatican does not have formal diplomatic ties with Saudi Arabia, and relations have been strained, with the Holy See demanding "reciprocity" in religious observance. While Muslims are free to practice their faith in the West Christians are not given the same rights in Saudi Arabia. Bibles and crosses are confiscated at the border.

From the Muslim point of view tensions were increased by the Pope himself last year after Benedict, speaking at Regensburg University in his native Bavaria, quoted from a Byzantine Emperor who had suggested Islam was inherently violent. He said he was misunderstood and later expressed his esteem for Muslims.

Last month the Pope met the Saudi Foreign Minister at Castalgandolfo, his summer residence outside Rome, to discuss the Middle East and the "defence of religious and moral values".