Joan II of Dreux (1309-1355) (1309–1355) Parents Péronelle de Sully John II, Count of Dreux Children Simon of Thouars Margaret of Thouars Isabella of Thouars Petronella of Thouars Siblings Robert V, Count of Dreux John III, Count of Dreux Peter I, Count of Dreux Partners Louis I of Thouars