"There are some... Points relating to Episcopacy, which Dr. Heylyn has long time since cleared and determined. And if some of our pretending States-men had considered and read what was written upon those Subjects, their time and pains would have been more profitably spent to the honor and security of this Church and Kingdom, than in raising doubts and scruples which had long before been so clearly stated and resolved. For, 1. As for Bishops sitting in Parliament to Vote in Causes of Blood and Death, this the Doctor evinced not only in the Tract, entituled, De Jure paritatis Episcoporum, but in his Observations upon Mr. L'Estrange's History, where he says, "that altho the ancient Canons disable Bishops from Sentencing any man to Death, yet they do not from being Assistants in such cases; from taking Examinations, hearing Depositions, of Witnesses, or giving Counsel in such matters as they saw occasion. The Bishops sitting as Peers in the English Parliament, were never excluded from the Earl of Straffords Trial, from any such Assistances, as by their Gravity and Learning and other Abilities, they were enabled to give in any dark and difficult business (tho of Blood and Death) which were brought before them. 2. With the like solid reasoning, the Doctor has evinced the Bishops to be one of the Three Estates."
Peter Heylin

January 1, 1970