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Jacques Hardouin-Mansart de Sagonne
Jacques Hardouin-Mansart
de
Sagonne
was a
French architect
. He was the
illegitimate son
of
Jacques
Hardouin-Mansart
, comte de Sagonne, by his
mistress
Madeleine
Duguesny - Jacques and Madeleine
married
in
1726
. Jacques
junior's
elder
brother was the
architect
Jean Mansart de Jouy
, whilst he was also the
grandson
of
Jules Hardouin-Mansart
, great-great-great
nephew
of
François Mansart
and
great-nephew
of
Robert de Cotte
.
