Barbara of Brandenburg, Duchess of Brieg German princess (1527–1595) Parents Magdalena of Saxony Joachim II Hector, Elector of Brandenburg Children Joachim Frederick of Brieg John George of Ohlau Elisabeth Magdalena of Brieg Siblings Frederick of Brandenberg John George, Elector of Brandenburg Elisabeth Magdalene von Brandenburg Hedwig of Brandenburg, Duchess of Brunswick-Wolfenbüttel Sophie of Brandenburg Sigismund of Brandenburg Partners George II, Duke of Brieg