Catherine, Countess Palatine of Simmern (1455-1522) Abbess of the Abbey of Saint Mary Magdalene in Trier (1455–1522) Parents Frederick I, Count Palatine of Simmern Margaret of Guelders Children Siblings John I, Count Palatine of Simmern Fredrick, Count Palatine of Simmern Rupert, Count Palatine of Simmern Stefan van Palts-Simmern Willem van Palts-Simmern