multi-ethnic voivodeship that was led by a voivode who was appointed by the King of Hungary until the 16th century. Several Kings of Hungary invited settlers from Central and Western Europe, such as the Saxons, to occupy Transylvania. The Székelys were brought to southeastern Transylvania as border guards. Romanians are mentioned by the Hungarian documents of a township called Olahteluk in 1283 in Bihar County. The "land of Romanians" (Terram Blacorum)<ref name="Tamás Kis">Tamás Kis, Magyar nyelvjárások, Volumes 18–21, Nyelvtudományi Intézet, Kossuth Lajos Tudományegyetem (University of Kossuth Lajos). Magyar Nyelvtudományi Tanszék, 1972, p. 83 Magyar nyelvjárások</</ref> appeared in Făgăraş and this area was mentioned under the name "Olachi" in 1285. After the Battle of Mohács in 1526, Transylvania belonged to the Eastern Hungarian Kingdom, from which the Principality of Transylvania emerged in 1570 by the Treaty of Speyer. Many other small states with varying degrees of independence developed on the territory of today's Romania. In the 14th century, the larger principalities Moldavia and Wallachia emerged to fight the Ottoman Turks, who conquered Constantinople in 1453. Independent Wallachia had been near the border of the Ottoman Empire since the 14th century until it had gradually succumbed to the Ottomans' influence during the next centuries with brief periods of independence. Vlad III the Impaler, () also known as Vlad Dracula was a Prince of Wallachia in 1448, 1456–62, and 1476. Vlad III is remembered for his raids against the Ottoman Empire and his initial success of keeping his small country free for a short time. In the Western world, Vlad is best known for being the inspiration for the main character in Bram Stoker's 1897 novel Dracula. The evaluates him as a ferocious but just ruler. the defender of the Wallachian independence and of the European Christianity against Ottoman expansionism. Stephen the Great () is thought to be the best voivode of Moldavia. Stephen ruled for 47 years, an unusually long period for that time. He was a successful military leader and statesman, losing only two out of fifty battles; he built a shrine to commemorate each victory, founding 48 churches and monasteries, many of which have a unique architectural style and are listed in UNESCO's list of World Heritage Sites. Stefan's most prestigious victory was over the Ottoman Empire in 1475 at the Battle of Vaslui, for which he raised the Voroneţ Monastery. For this victory, Pope Sixtus IV nominated him as