Costanza was born in Antioch, Turkey, the daughter of Konrad von Antiochia but her mother is unknown. The date is not known.
Her husband was Bartolomeo I della Scala. They were married, but the date and place have not been found. They had no known children.
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Konrad von Antiochia |
Friedrich von Antiochia |
Frédéric II du Saint-Empire |
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