Jhr. Prof. Joan Melchior Kemper
1776 - 1824 (48 years)
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- 1 Jhr. Prof. Joan Melchior Kemper [1] b. 26 Apr 1776 d. 20 Jul 1824
- + Christina de Vries b. 14 Apr 1772 d. 4 Jul 1856
- + Christina de Vries b. 14 Apr 1772 d. 4 Jul 1856