Guise, Jean d'Orléans, duc de
Guise, Jean d'Orléans, duc de:
see OrléansOrléans, family name of two branches of the French royal line.
The house of Valois-Orléans was founded by Louis, duc d'Orléans (see separate article), whose assassination (1407) caused the civil war between Armagnacs and Burgundians.
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