Captain William Henry Irvine Shakespear, 17th Bengal Cavalry, Indian Army and Indian Political Department. He was the son of William Henry Sullivan Shakespear, Imperial Forestry Service, and Anne Caroline Shakespear (nee Davidson). Baptised in Multan, Bengal India (now Punjab, Pakistan). Educated at King William's College, Isle of Man and Portsmouth Grammar School. Gentleman Cadet at the Royal Military College, Sandhurst. Commissioned into the Indian Army (unattached list) as a 2nd Lieutenant on 22 Jan 1898 and spent a year with the 1st Battalion the Devonshire Regiment. He was posted to the 17th Bengal Cavalry. Promoted to Lieutenant on 22 Apr 1900 and to Captain on 22 Jan 1907. In 1903 he was on special plague duty in Bombay and entered the Foreign Department of the Government of India. In 1904 he became Consul at Bunder Abbas, Iran and was then moved to Muscat, Oman as temporary Political Agent. He returned to India for 2 years as Second Assistant to the Resident at Hyderabad but in Nov 1908 he was back in Persia as assistant to the Political Resident at Bunder Abbas. In 1910 he was appointed the Political Agent in Kuwait and made seven separate expeditions into the Arabian interior, during which he mapped uncharted areas of Northern Arabia and became a close friend and military adviser of Ibn Sa'ud, then the Emir of the Nejd. In Nov 1914 early in WW1, the British government in India asked Captain Shakespear to secure Ibn Sa'ud's support for the British-Indian Mesopotamian Expeditionary Force, which had just captured Basra. Captain Shakespear was shot and killed at the Battle of Jarrab (24 Jan 1915) when Ibn Sa'ud's forces lost to Ibn Rashid, a battle fought at Arrab Lake, North of the town of Al Majma'ah, Arabia. The defeat of Ibn Saud and the death of Captain Shakespear diminished the relationship between Ibn Saud and the British, changing the course of the Arab Revolt against the Ottoman Empire. He is commemorated in the Old Jewish and Christian Cemetery, Kuwait.
He is also commemorated on the King William's College WW1 memorial in the King William's College Chapel, Castletown, Isle of Man (see: https://www.iwm.org.uk/memorials/item/memorial/28255), on the Portsmouth Grammar School WW1 memorial (see: https://www.memorialsinportsmouth.co.uk/others/pgs/ww1.htm) and on the Indian Army WW1 memorial in the Royal Memorial Chapel, RMA Sandhurst, Camberley, Surrey Heath Borough, Surrey, England.
Cenotaph here