Stanislaw Lubieniecki, (1623-1675) was a Polish historian and astronomer. He was born into an aristocratic family filled with artists and writers associated with the Socinian nontrinitarian sect. He was educated in the Racovian Academy (a Socinian school) frrom 1646 to 1650, but in the wake of the counter-reformation the Socinian community was expelled from Poland. He continued his studies in France and the Netherlands, later moving to live and work in Hamburg. He is best known for his Theatrum Cometicum (an illustrated anthology of recorded comets from the biblical era up to 1665) and the posthumously-published history of the Reformation in Poland. He and his daughters died of mercury poisoning, thought to be the result of a mistake by a domestic servant.