Johann Christian, Duke of Schlesien-Liegnitz-Brieg (1591–1639)

External identifiers	GND (Gemeinsame Normdatei) (121047156)
Source relationships	Source Relationship PL-WRu 51387 Muz. [Bassus] owner PL-WRu 51387 Muz. [Discantus] owner PL-WRu 51387 Muz. [Tenor] owner