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Male Antonius ben Siesyll, Duke of CORNWALL Click to view Antonius ben Siesyll, Duke of CORNWALL in the family tree

Antonius ben Siesyll, Duke of was born in 545 BC in Britain.  Antonius ben Siesyll, Duke of's father was Seisyll or Serwyl of BRITAIN.  His paternal grandfather was Gwrwst ben Rhiwallon King of BRITAIN.  He was an only child.  Antonius ben Siesyll, Duke of is no longer alive.


Antonius ben Siesyll, Duke of's family

He had a biological son named Aedd Mawr ben Antonius, Duke of.