Born in the second half of the 1380s, Polruddon was probably the son of a lawyer from central Cornwall, who represented Lostwithiel and Truro in the Parliaments of February 1388 and 1399 respectively, and had served as a royal commissioner, clerk of the peace and under sheriff in the county. Like his putative father, John trained in the law and it was probably his profession that recommended him to the burgesses of Truro and Bodmin for his two elections to Parliament. By the time of his second election he was sufficiently well established as a lawyer to be formally styled an apprentice-at-law in the return, and it was he who delivered the sheriff’s election indenture to Westminster.
The extent of the estates to which John succeeded at Pascoe Polruddon’s death is uncertain. Even in Pascoe’s lifetime he appears to have owned property in Innis Moor in St. Austell, and he may have subsequently held the older man’s lands spread out in the parishes of Veryan and St. Dennis.
Polruddon continued his professional practice into at least the mid 1430s, and even dared to provide sureties for the good behaviour of Thomas Bere* towards his old adversary Tregoose.
