Margaret and Henry, both 19 years of age, were married on 18 August 1572 at Notre Dame cathedral in Paris. The marriage between a Roman Catholic and a Huguenot was controversial. Pope Gregory XIII refused to grant a dispensation for the wedding, and the different faiths of the bridal couple made for an unusual wedding service. The King of Navarre had to remain outside the cathedral during the mass, where his place was taken by Margaret's brother, the Duke of Anjou.