1 Hinrich Cristoph RIEGEL =Catharina Magdalena HOODMANN 2 Maria Catharina Magdalena RIEGEL =Johann Martin Nicolaus KNOOP Marriage: 12 Apr 1864, Artlenburg, Duitsland 3 Catharina Dorothea Elisabet KNOOP 3 Marie Dorothee Elise KNOOP =Hermann Heinrich Cristoph KOOP Marriage: 9 May 1889, Artlenburg, Duitsland 3 Johann Heinrich Friedrich KNOOP =Catharina Dorothea Elisabeth RIEGEL Marriage: 14 May 1895, Scharmbeck, Duitsland