A leading music scholar was moved to tears when the Prince of Wales visited the biggest Orthodox temple in the Balkans on the first day of a two-day visit to Belgrade.
Charles met Professor Dimitrije Stefanovic at St Sava Temple and was treated to some medieval music.
Prof Stefanovic warmly shook the Prince's hand, becoming very emotional as he thanked him for visiting the spiritual temple of Serbian believers.
Two choristers performed a selection of music for the Prince before they joined Prof Stefanovic to sing a song specially written for Charles's visit.
The performances took place in the temple's crypt - which is yet to be completed - and there were fresco artists painting as the Prince was told about the detailed work that had gone into the building.
Crowds of well-wishers gathered to see the Prince as he left the temple to the ringing of bells. He took some time to shake hands with some members of the public, many of whom had applauded and cheered upon catching sight of him.
Earlier in the day Charles and the Duchess of Cornwall attended a memorial ceremony at Belgrade New Cemetery.
To mark the occasion, the Prince wore an RAF tie, veterans badge and the shoes issued to him when he joined the RAF in March 1971.
The memorial is above an underground crypt in which the bodies of 4,603 known and unknown soldiers have been laid to rest.
Shortly after the event, the Prince and President Tomislav Nikolic attended a wreath-laying ceremony at the Commonwealth War Graves Cemetery.
They were led into the site by a piper from the Royal Irish Regiment, and greeted by a British military band.
At the conclusion of the ceremony, the Prince asked Mr Nikolic to pause for a short time so he could pay his respects. After the wreath laying, the Last Post was played and a short prayer was said.
Crowds lined the streets as the royal couple made their way to Kalemegdan Fortress where they took in the view of the confluence of the River Danube and the River Sava.
The Duchess then left to make her way to an event at Zvecanska Children's Home where she was due to meet representatives of Unicef and the Djokovic Foundation.
Charles continued to walk in the sunshine towards the Roman Well, through the King's Gate, along the Sava Promenade and up the Grand Staircases towards the Victor Monument.
He stopped briefly at a World War One exhibition before walking on to Princess Ljubica's residence.
The building is one of a few that survived the first reign of Prince Milos Obrenovic, and was built between 1829 and 1831. Members of the public excitedly hurried to get photos of the Prince, some applauding as he passed by.
He was greeted at the residence by the Choir of the Jewish Community in Belgrade. He was then invited to take a seat in the Divan room to engage in an inter-faith dialogue with representatives from Serbia's Christian, Muslim and Jewish communities.