Jan Henry van Heemskerck Lord of Achttienhoven (15 Feb 1689 Amsterdam - 26 Feb 1730 's-Gravenhage) (1689–1730) Parents Coenraad van Heemskerck Cornelia Pauw Children Coenraad van Heemskerck Siblings Aletta Johanna van Heemskerck Partners Anna Petronella van Schuylenburch
