AFP - Britain's Prince Charles and his wife Camilla on Saturday started a four-day visit to the Czech Republic, which will wrap up their tour of three central European post-communist countries.

The royal couple, coming to Prague after visiting Poland and Hungary, first met with Czech President Vaclav Klaus and his wife at the Prague Castle, before taking a tour of the castle gardens.

The prince and Camilla, the Duchess of Cornwall, also visited a church where a group of British-trained Czech agents died in a heavy exchange of fire in 1942 after killing a top Nazi Germany official, SS-Obergruppenfuhrer Reinhard Heydrich.

Charles and Camilla also met Czech World War II veterans from the Royal Air Force in the church.

On Sunday, the royal couple will see Wolfgang Amadeus Mozart's opera Don Giovanni in Prague's Estates Theatre, where it premiered in 1787.

On Monday, the prince will travel to an environmentally-friendly village in eastern Czech Republic, while his wife is scheduled to visit a guide-dog school.

Before leaving for Britain on Tuesday, the royal couple will meet former Czech President Vaclav Havel and his wife.