His violent language in Westminster Hall about the speaker and other public men led in the following July to his arrest and committal to Newgate, whence he was discharged, however, without trial, by order of the House, in October.
Philpot was imprisoned soon after Mary's accession in 1553; and it is very pleasing to find, amidst the records of intense bitterness and rancour which characterized these times, and with which Romanist and Protestant alike assailed the persecuted Anabaptists, a letter of Philpot's, to a friend of his, "prisoner the same time in Newgate," who held the condemned opinions.
The church met in Newgate Street, London, and was the origin of the "General" Baptist denomination.
The buildings; of the monastery of Grey Friars, Newgate Street, were appropriated to it; liberal public subscription added to the king's grant endowed it richly; and the mayor, commonalty and citizens of London were nominated its governors in its charter of 1553.
The buildings on the Newgate Street site underwent reconstruction from time to time, and in 1902 were vacated by the school, which was moved to extensive new buildings at Horsham.