abstract:Captain William Henry Irvine Shakespear (29 October 1878 - 24 January 1915), was an English civil servant and explorer who mapped uncharted areas of Northern Arabia and made the first official British contact with Ibn Sa'ud, future king of Saudi Arabia. He was the military adviser to Ibn Saud from 1910 to 1915, when he was shot and killed in the Battle of Jarrab by one of Ibn Rashid's men.