What is Khalifa bin Salman Al Khalifa?
{{Infobox Officeholder | image = Khalifa ibn Salman Al Khalifa (cropped).jpg | name = HRH Khalifa bin Salman Al Khalifa<br/><small> صاحب السمو الملكي الأمير خليفة بن سلمان آل خليفة</small> | office = [[Prime Minister of Bahrain]] | monarch = [[Isa bin Salman Al Khalifa]]<br/>[[Hamad bin Isa Al Khalifa]] | deputy = [[Jawad Al-Arrayedh]]<br/>[[Muhammad bin Mubarak bin Hamad Al Khalifah]] | term_start = 16 December 1971 | term_end = 11 November 2020 | predecessor = Position created | successor = [[Salman bin Hamad bin Isa Al Khalifa]] | birth_date = {{birth date|1935|11|20|df=y}} | birth_place = [[Jasra]], [[Kingdom of Bahrain]] | death_date = {{death date and age|2020|11|11|1935|11|20|df=y}} | death_place = [[Rochester, Minnesota]], [[United States|U.S.]] | spouse = HH Sheikha Hessa bint Ali Al Khalifa | children = 4 }} '''His Royal Highness Prince Khalifa bin Salman Al Khalifa''' (20 November 1935 &ndash; 11 November 2020) was a Bahraini royal and politician. He was the unelected 1st [[Prime Minister of Bahrain]] from 1971 until his death in 2020.<ref>{{Cite web|url=https://www.mofa.gov.bh/Default.aspx?tabid=138&language=en-US|title=H.R.H. the Prime Minister|language=en-US|access-date=2018-04-16|archive-date=2019-11-09|archive-url=https://web.archive.org/web/20191109160757/https://www.mofa.gov.bh/Default.aspx?tabid=138&language=en-US|url-status=dead}}</ref> He was the longest-serving prime minister in the world.<ref>{{Cite web|url=https://www.globalsecurity.org/military/world/gulf/shaikh-khalifa.htm|title=Bahrain - Prime Minister Sheikh Khalifa bin Salman al-Khalifa|last=Pike|first=John|website=www.globalsecurity.org|language=en|access-date=2018-04-16}}</ref> Khalifa is the uncle of the King [[Hamad bin Isa Al Khalifa]].<ref>{{Cite web|url=http://www.washingtoninstitute.org/policy-analysis/view/royal-rivalry-bahrains-ruling-family-and-the-islands-political-crisis|title=Royal Rivalry: Bahrain's Ruling Family and the Island's Political Crisis|website=www.washingtoninstitute.org|language=en|access-date=2018-04-16