History of Transylvania issue of international contention. This has abated (but not disappeared) since the Revolution of 1989 restored democracy in Romania. Transylvania retains a significant Hungarian-speaking minority, slightly less than half of which identify themselves as Székely. Ethnic Germans in Transylvania (known as Saxons) comprise about one percent of the population; however, Austrian and German influences remain in the architecture and urban landscape of much of Transylvania. The region's history may be traced through the religions of its inhabitants. Most Romanians in Transylvania belong to the Eastern Orthodox Church faith, but from the 18th to the 20th centuries the Romanian Greek-Catholic Church
Transylvania 1526, Transylvania was a voivodeship in the Kingdom of Hungary, led by a voivode appointed by the King of Hungary. After the Battle of Mohács in 1526, Transylvania became part of the Kingdom of János Szapolyai. Later, in 1570, the kingdom transformed into the Principality of Transylvania, which was ruled primarily by Calvinist Hungarian princes. During that time, the ethnic composition of Transylvania transformed from an estimated near equal number of the ethnic groups to a Romanian majority. Vasile Lupu estimates their number already more than one-third of the population of Transylvania in a letter to the sultan around 1650.