Remigiusplatz is a square in Bonn's pedestrian zone named after a church that no longer stands. In 1800, lightning struck the Remigius Church and burned it to the ground. What remained was an open space, a name, and a story.

The church was woven into the history of the Beethoven family. Ludwig van Beethoven's great-grandparents were buried in its churchyard. His grandparents married there in 1733, his parents in 1767. Ludwig himself, along with all his siblings, was baptised in its font.

There is a further twist. DNA analysis of hair samples has shown no match with known descendants of the Beethoven family line from Holland. Whether it was his grandfather, his father, or Ludwig himself who was fathered by another man is unknown. One rumour, circulating even in his lifetime, named the Elector of Cologne to be his father.

VoiceMap's self-guided audio tours use the square to trace Beethoven's Bonn, the baptismal font that survived, and the question of whose son he really was.