Johanna Christina De Kock
1860 - 1937 (76 years)
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- 1 Johanna Christina De Kock [1] b. 16 Jul 1860 d. 22 Mar 1937
- + Baron Carel Willem van Heeckeren b. 16 Mar 1855 d. 17 May 1943
- + Baron Carel Willem van Heeckeren b. 16 Mar 1855 d. 17 May 1943