Ottelina Cornelia van Eck 28 Apr 1833 Arnhem - 24 Jun 1870 Gais, Switzerland (1833–1870) Parents Gerard van Eck Agatha van Haersolte Children Onno Joost Sickinghe Agathon Gerard Sickinghe Siblings François Willem Lambert van Eck Hester Henriëtta Jacoba van Eck Sophia Maria Françoise van Eck