Question: When was one of the three regicides which have their body placed in a pit on the Red Lion Square born? 

Context articles: Death of Kevin Gately
Red Lion Square disorders
Tim Lopes
Feng Shou
Chan Kam Lee
Red Lion Square
Jane Savage
Oliver Cromwell
Unio'n
AUKcon

Kevin Gately (18 September 1953 – 15 June 1974) was a second year student of mathematics at the University of Warwick who died as a result of head injuries received in the Red Lion Square disorders in London.
 He was the first person to die in a public demonstration in Great Britain for at least 55 years, since the British Army shot two looters dead in Liverpool during the riots associated with a police strike in August 1919.
The Red Lion Square disorders were a series of events in 1974.
Tim Lopes (born Arcanjo Antonino Lopes do Nascimento; November 18, 1950 – June 2, 2002) was a Brazilian investigative journalist and producer for the Brazilian television network "Rede Globo".
 In 2002, the media reported him missing while working undercover on a story in one of Rio's favelas.
 It was later learned that Lopes had been accosted by drug traffickers who controlled the area; was kidnapped; driven to the top of a neighboring favela in the trunk of a car; tied to a tree and subjected to a mock trial; tortured by having his hands, arms, and legs severed with a sword while still alive; and then had his body placed within tires, covered in gasoline and set on fire – a practice that traffickers have dubbed "micro-ondas" (allusion to the microwave oven).
Feng Shou (風手) is a Chinese Martial Arts style associated with Taoist Arts of the Lee-style as taught by Chee Soo, President of the International Taoist Society.
 Feng Shou came to London in 1930 when Chan Kam Lee an importer and exporter of precious stones taught a class in Red Lion Square in Holborn.
 Chan Kam Lee met Chee Soo and taught him the style in 1934.
 It is an internal or soft style.
 "Feng Shou Ch’uan Shu" means literally 'Wind Hand Fist Art'.
 The name comes from the ‘Earl of the Wind’, who in Chinese mythology was called Feng Po.
 He is depicted as an old man with a long flowing white beard, who stands on the green grass of the heaven’s highest pinnacle, dressed in a yellow cloak and wearing a red and blue hat.
 In his hands he holds the open end of a cotton sack, and wherever he points the mouth of the sack, the wind blows in that direction.
 He can turn a full circle, and send the winds unhindered across the whole world.
 If he moves slowly, then the wind from his sack will hardly move and it will feel like the gentleness of a morning breeze.
 But if he becomes angry or is surprised then he may turn very fast, and the wind will hurtle across the universe to create the devastation of a tornado.
Chan Kam Lee (李陈金 Pinyin: Lǐ chén jīn) was the first Taoist to teach the Taoist Arts in the West according to an account by Chee Soo in a book called "Taoist Yoga" published by Thorsons an imprint of Harper Collins in 1983.
 He established a Taoist Arts school in Red Lion Square in Holborn in 1930 teaching Lee-style t'ai chi ch'uan, Qigong, Traditional Chinese Medicine and Feng Shou 'Hand of the Wind' Kung Fu.
 He used his knowledge of Chinese Medicine and Herbalism to adapt the Ch'ang Ming diet for Westerners.
 Chan Lee is referenced in several further books written by Chee Soo and published by HarperCollins.
Red Lion Square is a small square in Holborn, London.
 The square was laid out in 1684 by Nicholas Barbon, taking its name from the Red Lion Inn.
 According to some sources the bodies of three regicides - Oliver Cromwell, John Bradshaw and Henry Ireton - were placed in a pit on the site of the Square.
Jane Savage (born 1752/1753, died 1824) was an English harpsichordist and composer.
 She was the daughter of English musician and composer William Savage (c. 1720–1789) and his wife Mary Bolt Savage.
 It is likely that Jane accompanied her father from his estate near Tenterden in Kent to London in 1780 or 1781 and lived in Red Lion Square, Holborn.
 Most of her music was published in this period.
 Unpublished pieces have been lost.
Oliver Cromwell (25 April 15993 September 1658) was an English military and political leader and later Lord Protector of the Commonwealth of England, Scotland, and Ireland.
The Unio'n vun de Fräiheetsorganisatiounen or just Unio'n ("Union of Freedom Organisations") was an organisation of members of the Luxembourgish Resistance which was founded in World War II.
 It emerged in March 1944 from the merger of the Luxembourgish Patriot League, the Luxembourgish People's Legion, the Luxembourgish Red Lion and other resistance movements, shortly before the end of the war in Luxembourg.
 In September 1944 the Luxembourgish Freedom Union also joined.
 It was the head of the Luxembourgish People's Legion, Lucien Dury, who contacted the other resistance movements in 1943 with a view to a merger.
 The resistance movements at the time had been weakened by raids and arrests by the Gestapo, and the goal was also to create a movement which could act as a representative body after the liberation.
 It was also planned that the organisation should, in creating a militia, contribute to maintaining order after the liberation.
AUKcon was a one-day anime convention held in London, England, on 19 February 1994.
 The venue was the Conway Hall (Red Lion Square), and the registration charge was £10.
 AUKCon was chaired by Helen McCarthy.
 During the convention, Lawrence Guinness of Manga Video announced that the company had acquired distribution rights for Ranma 1/2 and planned to start releasing it in 1994.
 Also announced included plans for the series Bio Booster Armor Guyver.
 One of the guests that attended was Toren Smith, writer of the American Dirty Pair comic and founder of Studio Proteus.
 The convention was the first UK anime event to provide a fan room with free space for fanzines and fanclubs.
 It also ran a gaming programme and an art and model show, as well as anime screenings and talks.