Jan IV of Pernštejn was a Moravian-Bohemian nobleman. He was high treasurer of Moravia in 1506–1516 and Landeshauptmann of Moravia in 1515–1519 and in 1526–1528 and governor of Moravia in 1530–1532. In 1537–1548, he was Count of Kladsko and pledge lord of the County of Kladsko.

Moravský Krumlov is a town in Znojmo District in the South Moravian Region of the Czech Republic. It has about 5,700 inhabitants. The historic town centre is well preserved and is protected by law as an urban monument zone.