Otto first married Mary (1527–1554), daughter of Duke
Barnim XI of Pomerania-Stettin. Mary and Otto had four sons: • Hermann (1545–1592),
Prince-Bishop of Minden (1566–1581) • Otto (1545–1572) (mentally insane) •
Adolphus XIV (1547–1601), count regnant in
Schaumburg and Holstein-Pinneberg, married to
Elisabeth of Brunswick-Wolfenbüttel (1567–1618) • Anthony (1549–1599), Prince-Bishop of Minden (1587–1599) In 1558 Otto married a second time, with Elisabeth Ursula (1539–1586), a daughter of
Ernest I, Duke of Brunswick-Lüneburg. Elisabeth Ursula and Otto had two daughters and one son: • Mary (1559–1616) married in 1591 Count
Josse of Limburg-Styrum (1560–1621) • Elisabeth, married in 1585 Count
Simon VI of Lippe (1554-1613) •
Ernest (1569–1622), count regnant of Schaumburg and Holstein-Pinneberg as of 1601, elevated to Prince of Schaumburg in 1619. ==See also==