Parmenter began trading from Lynn before March 1406 when, in partnership with Robert Brunham, he imported a cargo of wine from Gascony. This was probably his main mercantile interest, as he was later described as a vintner. In 1411-12 he served as a scabin of the Holy Trinity guild of merchants at Lynn,
From April 1431 Parmenter occupied the prestigious post of alderman of the fellowship of Corpus Christi, and two years later he became alderman of the Holy Trinity guild. While serving in the latter capacity he purchased on the town’s behalf a large chalice weighing 48 ounces called ‘Le Standyng Kowpe’, and when the mayor died in January 1437, Parmenter, as alderman, took over his office, as was customary, for the remainder of the term. On 17 July following he was re-appointed as a j.p. in the town, a position he had held for 13 years previously; but he died before Michaelmas. He was survived by his widow and son.
