Heinrich III. von Rosenberg
Heinrich III. von Rosenberg was one of the most significant members of his family. He took up rule over the Rosenberg estates after his father Ulrich I.\'s death in 1390. He held the post of high officer of the Czech kingdom. At the time when antagonism between the Czech aristocracy and Václav IV. of Luxemburg in the Czech lands grew stronger, he led the aristocracy units that captured him in 1394 and put him in jail. Český Krumlov was one of the Rosenberg castles where Václav IV. Was kept in captivity. During his second captivity in 1402 Václav IV. was also kept at the Český Krumlov castle. As a demonstration of his protest, Heinrich III. ruined the construction of the royal castle Kuklov. After his death in 1412 Ulrich II. von Rosenberg took over the Rosenberg estates.