Philip, Duke of Mecklenburg Duke of Mecklenburg-Schwerin (1552-1557) (1514–1557) Parents Duke Heinrich V, Duke of Mecklenburg-Schwerin Helen of the Palatinate Children Siblings Magnus III, Duke of Mecklenburg Sophie of Mecklenburg-Schwerin Ursula of Mecklenburg Margaret von Mecklenburg-Schwerin Catherine de Mecklembourg-Schwerin