Frederic II of Vianden German aristocrat (1134–1187) Parents Mathilde de Haute-Lorraine NN Frederic I of Vianden Gottfried I, Count of Sponheim Children Frederick III of Vianden Guillaume of Vianden Siblings Adelaide of Vianden Gerhard of Vianden Siegfried I Gottfried II of Sponheim Godefroid de Vianden Partners Elisabeth, Countess of Salm