Looking for parents/siblings of my great-great-grandfather Johann Jakob Andreas (b.1789-Germany). He was married 1812-Brunsow,Demmin,Germany to Maria Elisabeth Biedenweg (b.1790-Germany). Their son (my great-grandfather) Johann Heinrich Andreas (b.1813-Brunsow,Prussia,Germany; d.1866-Demmin,Pommern,Prussia,Germany) married 1843-Demmin,Germany to Johanna Maria Sophie Roeseler). I am not aware of any other children but feel sure there must be some. Any help will be greatly appreciated.