Shakespearian Henriad refers to a group of four William Shakespeare's history Richard II, Henry IV, Part 1, Henry IV, Part 2, and Henry V. These four plays constitute the Shakespearian epic with Prince Harry, who later becomes Henry V, as a central figure. Thanks to Shakespeare, King Henry V today stands side by side with the classical epic heroes such are Achilles and Aeneas, as one of the greatest warrior kings of medieval England,.