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1. Prospography Content: Guillaume de Poitiers (person)

Poitiers, known as bâtard de Langres or 'bastard of Langres', lord of Estrepy; illegitimate son of Guillaume de Poitiers, bishop of Langres, and a woman called Marguerite. He was legitimated in July 1358.

2. Prospography Content: Guillaume de Poitiers, bishop of Langres (person)

Guillaume de Poitiers, bishop of Langres