George IV ruled as king of the United Kingdom of Great Britain, Ireland and Hanover from 1820 to 1830. He replaced his insane father, George III.
George IV. (2013). The Biography Channel website. Retrieved 05:11, May 24, 2013, from http://www.biography.com/people/george-iv-9308901.
George IV. [Internet]. 2013. The Biography Channel website. Available from: http://www.biography.com/people/george-iv-9308901 [Accessed 24 May 2013].
"George IV." 2013. The Biography Channel website. May 24 2013, 05:11 http://www.biography.com/people/george-iv-9308901.
"George IV," The Biography Channel website, 2013, http://www.biography.com/people/george-iv-9308901 [accessed May 24, 2013].
"George IV," The Biography Channel website, http://www.biography.com/people/george-iv-9308901 (accessed May 24, 2013).
George IV [Internet]. The Biography Channel website; 2013 [cited 2013 May 24] Available from: http://www.biography.com/people/george-iv-9308901.
George IV, http://www.biography.com/people/george-iv-9308901 (last visited May 24, 2013).
George IV. The Biography Channel website. 2013. Available at: http://www.biography.com/people/george-iv-9308901. Accessed May 24, 2013.