Gertrude of Flanders, Countess of Savoy Countess Consort of Savoy Parents Sibylla of Anjou Thierry of Lorraine, Count of Flanders Children Eleonora di Savoia Siblings Philip I, Count of Flanders Margaret I, Countess of Flanders Peter of Flanders Laurette of Flanders Matthew of Alsace Matilda de Flandre Baldwin de Flandre Partners Umberto III, Count of Savoy Hugues III d'Oisy
