baptismal font of Prince Višeslav
Croatia
The Baptismal font of Duke Višeslav is an early medieval baptismal font the inscription of which mentions for the first time a South Slavic duke, Višeslav of Croatia. It is believed to date to the 9th century, and has generally carried historical and cultural significance for Croatia. Its origin and dating are a matter of scientific debate.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).