He is married to Elisabeth Julia Emma Dorothea Bertha van Hammerstein-Equord.
They got married on October 25, 1855 at Hildesheim, Nedersaksen, he was 38 years old.
Child(ren):
Bron:
Genealogisches Taschenbuch der adeligen Häuser, Volume 7, 1882, Pag. 310
https://books.google.nl/books?hl=nl&id=Ku85AQAAMAAJ&dq=adolf+gustav+friedrich+mandelsloh+1816&focus=searchwithinvolume&q=%22adolf+gustav+friedrich%22
The data shown has no sources.