<sod>Born in [[Drumcondra, Dublin]], Coghill was the eldest son of Sir John Joscelyn Coghill (1826–1905), 4th [[Baronet]], [[Justice of the Peace|JP]], [[Deputy Lieutenant|DL]], of Drumcondra, [[Co. Dublin]] (see [[Coghill baronets]]), and his wife, the Hon. Katherine Frances Plunket, daughter of [[John Plunket, 3rd Baron Plunket]]. He was a nephew of [[David Plunket, 1st Baron Rathmore]] and [[William Plunket, 4th Baron Plunket]]. The painter [[Sir Egerton Coghill, 5th Baronet]] was his younger brother. Coghill was educated at [[Haileybury College]] from 1865-69<ref>[http://www.haileybury.com/medals/victoria_cross.htm Haileybury Website - Details of military medals]</ref> and is now commemorated by a leadership programme named in his honour. Coghill was portrayed by [[Christopher Cazenove]] in the film ''[[Zulu Dawn]]''.<ref>[http://www.imdb.com/name/nm0147392/ IMDB]</ref><ref>{{cite web|author1=[[Anthony Hayward]]|title=Christopher Cazenove obituary|url=http://www.theguardian.com/global/2010/apr/08/christopher-cazenove-obituary|website=theguardian.com|publisher=The Guardian|accessdate=22 July 2015|date=8 April 2010|quote=He was....the Zulu War hero Lieutenant Coghill in Zulu Dawn (1979)}}</ref><eod>
<sod>Born in [[Drumcondra, Dublin]], Coghill was the eldest son of Sir John Joscelyn Coghill (1826–1905), 4th [[Baronet]], [[Justice of the Peace|JP]], [[Deputy Lieutenant|DL]], of Drumcondra, [[Co. Dublin]] (see [[Coghill baronets]]), and his wife, the Hon. Katherine Frances Plunket, daughter of [[John Plunket, 3rd Baron Plunket]]. He was a nephew of [[David Plunket, 1st Baron Rathmore]] and [[William Plunket, 4th Baron Plunket]]. The painter [[Sir Egerton Coghill, 5th Baronet]] was his younger brother. Coghill was educated at [[Haileybury College]] from 1865-69<ref>[http://www.haileybury.com/medals/victoria_cross.htm Haileybury Website - Details of military medals]</ref> and is now commemorated by a leadership programme named in his honour. <eod>