Biographical Information Married 1392 Parents Sohier du Bois dit de Fiennes Marie de Fiennes DuBois Spouse Jeanne de DuBois de Fiennes Date of Birth 1365 Source(s) http://homepages.rpi.edu/~holmes/Hobbies/Genealogy2/ps13/ps13_051.htm https://www.findagrave.com/memorial/128478385/jean-dubois_de_fiennes