Anna was the daughter of Dietrich van Hoeck and Mette von Breyde. The date and place of her birth have not been found.
Her husband was Detlev von Rumohr. They were married, but the date and place have not been found. Their eleven known children were Joachim (1578-1623), Eibe (1579-1663), Margarethe (1580->1630), Asmus (1581-1656), Henneke (<1581->1616), Anna (1582-c1657), Schack (1585-1643), Otto (1587-1591), Heseke (1588-1619), Ida (c1590-1647) and Cai (1591-1591).