Otto II of Nassau-Siegen Count of Nassau-Siegen (1343-1350/51) (1305–1350) Parents Adelaide of Heinsberg and Blankenberg Henry I of Nassau-Siegen Children Adelaide of Nassau-Siegen John I of Nassau-Siegen Otto of Nassau-Siegen Henry of Nassau-Siegen Siblings Agnes of Nassau-Siegen Henry I of Nassau-Beilstein Partners Adelaide of Vianden
