Anne of Nassau-Siegen German countess regent (d. 1514) Parents Mary of Looz-Heinsberg John IV, Count of Nassau-Siegen Children Henry the Middle, Duke of Brunswick-Lüneburg William of Brunswick-Lüneburg Siblings Engelbert II of Nassau Ottilie of Nassau-Siegen John V of Nassau-Siegen Joanne of Nassau-Siegen Adriana of Nassau-Siegen Adriaan van Nassau Jan van Nassau Partners Otto V, Duke of Brunswick-Lüneburg Philip 'the Elder' of Katzenelnbogen
