Henry V by William Shakespeare.

Henry V is a history play by William Shakespeare, believed to have been written around 1599. It tells the story of King Henry V of England, focusing on events immediately before and after the Battle of Agincourt (1415) during the Hundred Years' War. The play is the final part of a tetralogy, preceded by Richard II, Henry IV, Part 1, and Henry IV, Part 2. The original audiences would thus have already been familiar with the title character, who was depicted in the Henry IV plays as a wild, undisciplined lad known as "Prince Harry" and by Falstaff as "Hal". In Henry V, the young prince has become a mature man and embarks on a successful conquest of France.