Sophie Thalbitzer (née Zinn, 15 April 1774 – 27 December 1851)[1] was a Danish memoirist known for Grandma's Confessions (Danish: Grandmamas Bekiendelser),[2] which offers a rare first-hand account of everyday life for a child and young woman in an upper-class bourgeois family in Copenhagen during the late 18th and early 19th century. She was a daughter of the wealthy merchant Johann Ludvig Zinn and grew up in the Zinn House at Kvæsthusgade 3.[3] The building was listed on the Danish registry of protected buildings and places in 1959.[4]