Oldřich I of Rosenberg
Oldřich I of Rosenberg (died 1390) was the fourth son of Peter I of Rosenberg and Kateřina of Vartenberk. As a young man he helped endow the Minorite monastery in Český Krumlov.
When his brother Jošt died in 1369 he became head of the family, but kept out of public life because of the Rosenbergs' quarrel with the crown. In 1381–1382 he and his brothers aided Jindřich of Schaunberg against Duke Albert III of Austria.