(1) He has/had a relationship with Anna Louise Germaine van Necker.
(2) He is married to Wilhelmina Louise Johanna van Cramm.
They got married on May 8, 1789 at Brunswijk, Nedersaksen, he was 21 years old.
The couple were divorced on November 18, 1795.
(3) He is married to Georgina Charlotte Auguste van Hardenberg.
They got married on June 2, 1808, he was 40 years old.
Bron: https://nl.wikipedia.org/wiki/Benjamin_Constant_(schrijver)
en: https://gw.geneanet.org/cvpolier?lang=en&iz=0&p=henri+benjamin&n=constant+de+rebecque
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