 In Paris in May 1403, it was agreed that Margaret would marry the new Dauphin of France, Duke Louis of Guyenne.A double marriage took place at the end of August 1404, as part of Philip the Bold's efforts to maintain a close relationship with France by ensuring that the next Queen of France would be his granddaughter.Margaret married Dauphin Louis, while her only brother, Philip the Good, married Louis' sister Michelle.