Four preachers from the English Puritan era of the 17th century. The period of King Charles 1 - 11- Oliver Cromwell- William of Orange- the Great Ejection and -Black Bartholomew's Day on August 24 1662.---The final study looks at the ministry of Swiss born Pierre Viret, a close friend of John Calvin. Viret, an outstanding gospel orator but largely forgotten Reformer was born in the Swiss village of Orbe, near Lausanne.