He was the son of
Antoni Benedykt Lubomirski,
swordbearer of the Crown, and Anna Zofia Ożarowska. The young prince was schooled at
Collegium Nobilium in Warsaw and the
Académie de Stanislas in
Lunéville. After completing his education, he traveled around Europe and stayed longer in Paris, where, at the age of sixteen, he spent a considerable fortune entrusted to him by his father. Hearing about his son's wasteful life, his father summoned him to Poland and decided to assign his son to a military career. Thanks to various protections, Jerzy Marcin was promoted to the rank of major general. In response, he gathered a band of two hundred robbers and plundered Połonne, the property of his father. He then kidnapped the seventeen-year-old
lady-in-waiting of his mother, Anna Weleżyńska, and escaped with her to the estate near Częstochowa. It belonged to his uncle
Franciszek Lubomirski, whom he quickly robbed and burned his property. After many adventures he moved to Warsaw and became a patron of the arts. Since 1775 he was a part of the Warsaw theatrical scene, e.g. funding a ballet „Sąd Parysa" (Judgement of Paris) in 1775. Having divorced Anna Maria, he married Honorata Stępkowska in 1777. They lived together for a short time, but Jerzy Marcin allowed a divorce only in 1782. It was not his only scandalous behavior – claimed that the prince had "nasty Eastern quirks" and openly kept a boy Cossack as his
favourite, for whom he bought a nobility from the king. Nowadays the prince's numerous affairs with women and men (his other lover was a secretary of
Janusz Aleksander Sanguszko, Karol Szydłoski) could be interpreted as
bisexual. After 1783 Jerzy Marcin was married to Wilhelmina Albertyna, daughter of
Friedrich Wilhelm von Seydlitz. They divorced before June 1785, when Wilhelmina married . In 1785 Jerzy Marcin was in charge of the court theater of
Stanisław August Poniatowski. Soon he limited his theatre work and organised only concerts and balls. Eventually he sold most of his goods and went to
Frankfurt am Main in 1789, where he became close to
Jacob Frank and his sect, participating even in Frank's funeral. During his Frankfurt period he married for the last time, to
Frankist Tekla Łabęcka (who died in Warsaw in 1830). Jerzy Marcin spent his last years alone in poverty in
Przecław, where he died He inherited
Mniszew lands from his uncle and a huge fortune and lands from his father (including Dobra Połonne, Międzyrzec, Lubar,
Janowiec Castle). He dissipated the fortune, and he sold Mniszew] to
Magdalena Agnieszka Sapieżyna before his bankruptcy. According to a legend he lost Janowiec castle to . == Notes ==