In 1670 the Quaker and future founder of Pennsylvania; William Penn (d. 1718); was arrested on a charge of being part of an 鈥榰nlawful and tumultuous' assembly in London. Having been tried at the Old Bailey; Penn was initially acquitted by the jury; whose members were then chastised; fined and imprisoned for having returned a verdict of not guilty. Invoking Magna Carta; an incredulous Penn called from the dock; 鈥業t is intolerable that my Jury should be thus menaced; Is this according to the fundamental Laws? Are not they my proper Judges by the great Charter of England?' Penn published this transcript of his trial; representing his cause as a defence of the ancient liberties embodied in Magna Carta; to which was added a lengthy analysis of 鈥榯he Material Parts of the Great Charter of England'.London; 1670.From: The Peoples Ancient and Just Liberties Asserted. In the trial of William Penn; and William Mead; at the session held at the Old Baily. against the most arbitrary proceedings of that Court.113. h. 50; page 20London; British Library.