From thence we came without the Eaſtern gate, (ſtanding on a low Banke, called the daughter of Syon, that over-toppeth the valley of Iehoſaphat,) unto an immoveable ſtone, upon the which they ſaid St. Stephen was ſtoned to death, the firſt Martyr of the Chriſtian faith; and the faithfull fore-runner of many noble followers.
Source: wiktionary