Robert was probably related to William Trott of Arundel, a notary who had served as a tax collector in Sussex in 1416 and attested the shire elections at Chichester in the following year.
Many of the records referring to Trott concerned suits for debt arising from his trading activities. In 1440 he was sued in the common pleas for separate debts of £13 and ten marks owed to creditors in London as well as his home county, while in 1450 (shortly before his Parliament assembled) he brought an action for a smaller amount against a merchant from Chichester.
Trott’s single return to Parliament took place in the autumn of 1450, and not long after the dissolution a Robert Trott was appointed, albeit only briefly, as controller of customs at Poole.
