Brereton used the arms of the Cheshire family of this name, but as he failed to identify his grandfather when supplying his pedigree to the heralds in 1623, the asserted descent cannot be substantiated. His father acquired Yard manor by marriage, and Brereton also owned St. James’s rectory in Taunton and a number of messuages in the town.
Brereton himself was sufficiently untainted by Catholicism to be returned for Taunton to the 1621 Parliament. However, while serving in the Commons, he had a subpoena served on him by one Robert Napper, an attorney much employed by West Country Catholics, apparently in connection with a family dispute. On 29 Nov. Sir William Spencer* claimed parliamentary privilege on his behalf, and Napper was duly summoned before the House. Four days later, Brereton rebuffed the lawyer’s efforts to excuse himself, and Napper was committed to the custody of the serjeant-at-arms for three days.
In 1626 Brereton made way at Taunton for Phelips’s brother-in-law, Sir Robert Gorges. His reputation may have been damaged by the growing notoriety of his sisters’ household, although soldiers who raided the property later that year in search of a seminary priest were arrested by the local magistrate, Sir John Strode. One of the sisters became a nun on the Continent, while the other married into the Catholic Arundell family of Chideock, Dorset. Phelips nevertheless looked to Brereton for support in the county election of 1628, and he continued to attend quarter sessions.
