Jan Cornelisz Mostert 1
born Utrecht 2
died 1718, probably 3
will dated 14 December 1717 4 | Notes: | So far as I can see his marriage in 1672 is the first record of his presence at the Cape. There are a number of men named Jan Cornelisz listed in both the muster rolls of free settlers and of Company servants, but none with the birth place of Utrecht (but the Company's rolls of this date generally do not record birth place.
 The Vrijboek of 1681 (Nationaal Archief, Den Haag, VOC: Over- gekomen brieven en papieren uit Kaap de Goede Hoop en Mauritius aan de Heren XVII en de kamer Amsterdam, Inventory: 4017 (1681-1682) - supplied by Corney Keller), has the following entry, however, which might refer to him: Jan Cornelissen van Utrecht soldaat daar voor anno 1661 met 't Wapen van Hollandt voor de Camer Amsterdam aangelant
 for a note on his parentage see below# |
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| | children of Jan Cornelisz Mostert and Alida van Hulst | |
| | Cornelis Mostert 1673-circa 1699 born 1673 6 baptized 12 March 1673, Cape Town 7 died circa 1699, (assumed) 8 |
| Jannetje Mostert born 1675 born 1675 9 baptized 10 March 1675, Cape Town 10
 Notes: She had presumably died before 1717 since she was not mentioned in her father's will of that date.
 't Caabse District p. 151 Adam Lambertsz & Johanna Mostert

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 eodem Dito (Den 1[7]: dito (julii:)) sijn aen Stellenbosch, in den huijwelijken staet vereenigt Hendrik Venter van Hamelin jonghman, ende vrijborger aldaer met Joanna Mostert jonge doghter
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| Jacob Mostert 1676-circa 1723 born 1676 baptized 22 November 1676, Cape Town died circa 1723, (assumed from date of inventory) married 25 December 1712 Stellenbosch Maria Magdalena de Peronne 11 born after 1695 |
| Maria Mostert 1679-1713 born 1679 baptized 19 February 1679, Cape Town died 1713 married Adam Leendertse van Nieuwenbroek 12 died circa 1718 |
| Wouterina Mostert born 1682 born 1682, at the Cape baptized 6 September 1682, Cape Town married 1 May 1701 Cape Town Jan Laurentz 13 |
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| | children of Jan Cornelisz Mostert and Elisabeth Nieumeyer | |
| | Ernst Mostert 1688-before 1689 born 1688 15 baptized 9 May 1688, Stellenbosch 16 died before 1689, (assumed: baptism of another Ernst)
 Notes: He presumably died before his brother, also named Ernst, was baptised on 7th August 1789.
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| Ernst Mostert 17 1689-before 1756 born 1689 18 baptized 7 August 1689, Stellenbosch 19 died before 1756 20 married Sophia Cloete 21 |
| Hester Mostert born 1690 born 1690, at the Cape baptized 8 October 1690, Cape Town married (1) 20 March 1712 Cape Town Isak Kaf died circa 1713 married (2) 14 February 1714 Cape Town Benjamin Wiese 22 born 1689 assistant in service of the Dutch East India Company |
| Jan Mostert 1693-circa 1729 born 1693 baptized 23 March 1693, Cape Town died circa February 1729 married 12 February 1719 Cape Town Hilletje Olivier 23 circa 1687-1765 of Welgemoed, in the Tijgerberg, 1736, Stellenburg, Cape Town |
| Tobias Mostert born 1696 baptized 12 February 1696, Cape Town married Geertruijd Olivier 24 born 1698 |
| Cornelis Mostert 1699-before 1717 born 1699 25 baptized May 1699, Cape Town 26 died before 1717 27 |
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