Question: Who served as junior minister being known for his colorful ties and waistcoasts under the oldest living Prime Minister of the United Kingdom? 

<P0-S0> The Swedish constitution of 1974 allows the Prime Minister of Sweden to appoint one of the Ministers in the cabinet as Deputy Prime Minister ("biträdande statsminister", also unofficially known as "vice statsminister", "Vice Prime Minister"), in case the Prime Minister for some reason is prevented from performing his or her duties. <P0-S1>  However, if a Deputy Prime Minister has not been appointed, the Minister in the cabinet who has served the longest time (and if there are several with equal experience the one who is oldest) takes over as head of government. <P0-S2>  Note that the person acting as Prime Minister does not do so on a permanent basis: if a Prime Minister dies, resigns or loses a vote of confidence in the Riksdag, the Speaker of the Riksdag will then confer with the parties of the Riksdag and propose a new Prime Minister, who must be tolerated by a majority of the Riksdag. <P0-S3>  If the Prime Minister has resigned or lost a vote of confidence, he or she will remain the head of a government "ad interim" until the new Prime Minister assumes his or her office. <P0-S4>  The only case where the governmental line of succession becomes relevant is when the Prime Minister dies (upon which the person next in the line of succession serves as the head of a government "ad interim") or when the Prime Minister is on leave or for any other reason incapable of serving, but still remains in office. <P0-S5>  This might be compared to the Presidential line of succession in the United States, where the person next in line assumes the Presidency throughout the remainder of the term if the President dies, resigns or is impeached. <SEP> <P1-S0> Eric Forth (9 September 1944 – 17 May 2006) was a British politician. <P1-S1>  He was the Conservative Member of the European Parliament (MEP) for Birmingham North, then Member of Parliament (MP) for Mid Worcestershire and finally Bromley and Chislehurst at his death. <P1-S2>  He served as a junior minister in the governments of Margaret Thatcher and John Major between 1988 and 1997. <P1-S3>  In his obituaries, he was described as "colourful", "flamboyant", "provocative" and a "right-wing libertarian". <P1-S4>  He was noted for his colourful ties and waistcoats, sideburns, and jewellery. <P1-S5> ." <SEP> <P2-S0> Sir John Major, {'1': ", '2': ", '3': ", '4': "} (born 29 March 1943) is a British politician who was Prime Minister of the United Kingdom and Leader of the Conservative Party from 1990 to 1997. <P2-S1>  He served as Foreign Secretary and then Chancellor of the Exchequer in the Thatcher Government from 1989 to 1990, and was the Member of Parliament (MP) for Huntingdon from 1979 until he retired in 2001. <P2-S2>  Since Margaret Thatcher's death in 2013, he is the oldest living former Prime Minister. <SEP> <P3-S0> The Prime Minister's Official Spokesperson or alternatively Prime Minister's Official Spokesman/Spokeswoman is a position in the United Kingdom's Civil Service, located in the Prime Minister's Office in 10 Downing Street and used by the British Prime Minister to convey information to the public. <P3-S1>  The Prime Minister's Official Spokesperson usually addresses a small group of press and media correspondents, known as lobby correspondents, each morning to deliver statements on current events on behalf of the Prime Minister.