While evidence for Rydout’s forebears is lacking, it is possible that the namesake who took part in the Ipswich election for the Parliament of 1411 and arbitrated between two of the borough’s residents eight years later was his father.
As far as is known, Rydout sat in just one Parliament, the brief assembly of 1447. This assembly, for which the borough allowed him expenses of 26s. 8d.,
Rydout may not have survived much beyond 1469 when he relinquished his last offices in the borough. William Rydout, ‘junior’, was active at Ipswich in the following decade but it is likely he was a younger man. A chapman, he had dealings with John Shelley, a mercer from London who sued him at Westminster in 1471 over a debt of £40.
