Costanza I of Sicily

Queen of Sicily (1154–1198)

Parents

• Beatrice of Rethel
• Roger II of Sicily

Children

• Frederick II, Holy Roman Emperor

Siblings

• Tancred, Prince of Bari
• Simon, Prince of Taranto
• Alfonso of Hauteville
• Roger III, Duke of Apulia
• William I of Sicily
• Adelicia of Sicilia

Partners

• Henry VI