The 17th-century battlefield ushered in a new era, with formed musketeers and pistol-wielding cavalry gradually taking over from the knights and men-at-arms that had dominated the European battlefield. But knights could still be found on these battlefields as late as the 1640s, proudly donning their full-plated armor as their lightly clad compatriots looked on in a mix of envy and confusion. What were they doing fighting 17th-century battles?

Today’s guest is Myke Cole, author of “Steel Lobsters: Crown , Commonwealth, and the Last Knights in England.” We examine the life and times of Sir Arthur Hesilrige and his Regiment of Horse, known as "the Lobsters" as they were encased in plate armor. We cover the full history of England's last knights, from the seeds of their creation in Hesilrige’s experience as a young cavalry officer, to their final defeat at Roundway Down in July 1643, and the decision to abandon their armor.