John del See was from a family long associated with Grimsby and, before its decline in the mid fourteenth century, the rival port of Ravenser Odd on the opposite bank of the river Humber. In 1315 a namesake gave a messuage in Grimsby to the house of Augustinian friars there, and Peter del See, a patron of the same house, served as mayor of the borough in the 1340s. Other members of the family represented Ravenser Odd in the Parliaments of 1305, 1327 (Sept.) and 1337 (Sept.).
In the Michaelmas term of 1423 it was del See’s turn to act as a plaintiff: as his father’s executor he sued a ‘wolbrogger’ in the court of common pleas for a debt of £40. This is one of several references which indicate that he had trading interests. Although generally styled as ‘of Little Coates, gentleman’, he was described as ‘of Grimsby, merchant’ in several debt actions in the same court in the 1430s. He was also an active litigant in the borough court: in the late 1440s he appears on several occasions as a plaintiff there with his son Stephen acting as his attorney.
These maritime interests served as a useful supplement to del See’s landed income, which was assessed in 1436 at £5 p.a. (compared with his elder brother’s £18 p.a.).
