There are two personages of this name who are to be found as notaries in an act of 1438. (Arch. de la Seine-Inférieure, G. 3668)

Robert Guérould, mentioned as notary as early as 1420, edited about 1424 the capitulary registers, and kept them until 1441.

He is cited as secretary of the promoter of the archbishopric in 1447. He signed his account, in 1450, with Gilles Deschamps and Raoul Roussel. He is mentioned as Clerk of the archbishop's court between 1453 and 1456. lie was still living in 1460. He was completely in the confidence of Raoul Roussel, whose secretary he was, and also an executor of his will in 1452.

A Robert Guérroult is - mentioned as cavalry sergeant at le Châtelet in Paris in 1433