King Henry the Fourth, Part 1 - William Shakespeare - Henry IV, Part 1 is a history play by William Shakespeare, believed to have been written no later than 1597. It is the second play in Shakespeare's tetralogy dealing with the successive reigns of Richard II, Henry IV (two plays), and Henry V. Henry IV, Part 1 depicts a span of history that begins with Hotspur's battle at Homildon against the Douglas late in 1402 and ends with the defeat of the rebels at Shrewsbury in the middle of 1403.