Henry V" is a history play by William Shakespeare believed to have been written in 1599. It is based on the life of King Henry V of England & focuses on events immediately before & 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 & " Henry IV" part 2. The plot follows the young prince (a reckless & undisciplined character in " Henry IV") as he matures into a man & embarks on an attempted conquest of France."