Disambiguation evidence for Charles I, Duke of Mantua and Montferrat via surface form

"Charles III, Duke of Mantua and Montferrat"

Triples (1)

Triples where some other subject referred to this entity as "Charles III, Duke of Mantua and Montferrat".

Charles IV, Duke of Mantua and Montferrat → father →
"Charles III, Duke of Mantua and Montferrat"
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