Henry III, a member of the House of Welf, was Duke of Brunswick-Lüneburg and ruling Prince of Lüneburg from 1559 until 1569, jointly with his brother William the Younger. From 1569, he ruled over the Lordship of Dannenberg until his death.
Marriage and children who reached adulthood
In 1569 Henry married Ursula of Saxe-Lauenburg (*1545 – 22 October 1620*, Schernebeck), daughter of Francis I of Saxe-Lauenburg. They had the following children: • Julius Ernest (1571–1636) • Francis (1572–1601) Provost of Strasbourg • Anne Sophie (1573–1574) • Heinrich (1574–1575) • Sybil Elizabeth (1576–1630), married Anthony II, Count of Delmenhorst • Sidonia (1577–1645) • Augustus (1579–1666) His agnatic progeny went extinct in 1884. ==References==