Gabriel Báthory (1589–1613)
Born 1589 CE, died 1613 CE.
Gabriel Báthory (Hungarian: Báthory Gábor; 15 August [O.S. 5 August] 1589 – 27 October 1613) was Prince of Transylvania from 1608 to 1613. The Ottomans nicknamed him "Deli Kiral" (Mad King). Born to the Roman Catholic branch of the Báthory family, he was closely related to four rulers of the Principality of Transylvania (a vassal state of the Ottoman Empire which had developed in the eastern territories of the medieval Kingdom of Hungary). His father, Stephen Báthory, held estates in the principality, but never ruled it. Being a minor when his father died in 1601, Gabriel became the ward of the childless Stephen Báthory, from the Protestant branch of the family, who converted him to Calvinism. After inheriting most of his guardian's estates in 1605, Gabriel became one of the wealthiest landowners in Transylvania and Royal Hungary (a realm of the Habsburg Empire which included the northern and western parts of medieval Hungary). Gabriel made an alliance with the Hajdús—irregular troops stationing along the borders of Transylvania and Royal Hungary—and laid claim to Transylvania against the elderly prince, Sigismund Rákóczi in February 1608.
Text from the Wikipedia article Gabriel_Báthory, licensed CC BY-SA 4.0.