Question: When was the Finnish military leader and statesman died who served as  Commander-in-Chief under Johan Wilhelm (Jukka) Rangell?
Context: Colonel Mikko ("Karl Johan Michael") Collan (22 July 1881, Nurmes – 3 October 1964) was a Finnish military officer, farmer and politician.  He was a member of the National Progressive Party.  He served as Minister of Provisions in Lauri Ingman's first cabinet (27 November 1918 – 17 April 1919), in Kaarlo Castrén's cabinet (17 April 1919 – 15 September 1919) and in Juho Vennola's first cabinet (15 September 1919 – 15 March 1920) as well as a Member of Parliament (1 April 1920 – 8 October 1920). Antti Kukkonen (3 October 1889, Kontiolahti - 14 February 1978) was a Finnish Lutheran pastor and politician.  He was a member of the Agrarian League.  He served as Deputy Minister of Education in Lauri Ingman's second cabinet (31 May 1924 - 22 November 1924), as Minister of Education in Juho Sunila's first cabinet (17 December 1927 - 22 December 1928), in Kyösti Kallio's third cabinet (16 August 1929 - 4 July 1930), in Juho Sunila's second cabinet (21 March 1931 - 14 December 1932), in Kyösti Kallio's fourth cabinet (7 October 1936 - 12 March 1937), in Risto Ryti's second cabinet (27 March 1940 - 4 December 1941) and in Jukka Rangell's cabinet (4 January 1941 - 5 March 1943) as well as a Member of Parliament (1 April 1919 - 5 April 1945 and 29 March 1954 - 19 February 1962). Viljami Kalliokoski (15 May 1894, in Halsua – 20 January 1978) was a Finnish farmer and politician.  He was a member of the Agrarian League.  He served as Deputy minister of Agriculture in Kyösti Kallio's fourth cabinet (7 October 1936 - 12 March 1937) and as Minister of Agriculture in Risto Ryti's second cabinet (15 August 1940 - 4 January 1941), in Jukka Rangell's cabinet (4 January 1941 - 5 March 1943), in Edwin Linkomies' cabinet (5 March 1943 - 8 August 1944), in Antti Hackzell's cabinet (8 August 1944 - 21 September 1944), in Urho Castrén's cabinet (21 September 1944 - 17 November 1944), in Ralf Törngren's cabinet (5 May 1954 - 20 October 1954) and in Urho Kekkonen's fifth cabinet (20 October 1954 - 3 March 1956) as well as a Member of Parliament (5 September 1922 - 5 April 1945 and 22 July 1948 - 19 February 1962). Baron Carl Gustaf Emil Mannerheim (] ; 4 June 1867 – 27 January 1951) was a Finnish military leader and statesman.  Mannerheim served as the military leader of the Whites in the Finnish Civil War, Regent of Finland (1918–1919), commander-in-chief of Finland's defence forces during World War II, Marshal of Finland, and the sixth president of Finland (1944–1946). Mannerheimintie (Swedish: "Mannerheimvägen" ), named after the Finnish military leader and statesman Carl Gustaf Emil Mannerheim, is the main street of Helsinki, Finland.  It was originally named Heikinkatu (Swedish: "Henriksgatan" ), after Robert Henrik Rehbinder, but was renamed after the Winter War.  The change of name was also suitable due to Mannerheim having paraded in along that road during the Finnish Civil War (1918), after German forces allied with Mannerheim's Finnish forces had retaken the city.  That event is also portrayed in the landmark statue of Mannerheim sitting horseback.  The statue is located along the Mannerheimintie just outside the modern arts museum Kiasma. Jukka is an old variant of the name Johannes, a biblical name spread over to Finland through Sweden with the introduction of Christianity.  Jukka remained a nickname for people registered by authorities as Johan, Johannes, Juho etc., and did not appear in official records until the late 19th century.  The name was added to the official list of first names in the Finnish almanac managed by the Almanac Office at the University of Helsinki in 1950, and its name day is June 24, also the name day of Johannes and other variants, and the traditional midsummer day, or "Juhannus". Johan Wilhelm Broman (6 April 1877 in Vaasa – 2 June 1953) was a Finnish lawyer and politician.  He was a member of the Parliament of Finland from 1927 to 1929, representing the Swedish People's Party of Finland (SFP). Johan Wilhelm "Jaska" Saarivuori (born 3 November 1888, Vyborg, Grand Duchy of Finland, Russian Empire; died 1 August 1938, Joutseno, Finland) was a Finnish gymnast who competed at the 1908 Summer Olympics men's artistic individual all-around event.  His score or rank were not officially recorded, and it is only known that he wasn't the best Finn in the event, meaning he didn't place in the top 75. Johan Wilhelm (Jukka) Rangell (October 25, 1894 – March 12, 1982) was the Prime Minister of Finland from 1941 to 1943.  Educated as a lawyer, he was a close acquaintance of President Risto Ryti before the war, and made his initial career as a banker in the Bank of Finland.  He played a role in the efforts at a 1940 Summer Olympics in Helsinki after the International Olympic Committee (IOC) retracted the original choice of Tokyo.  After the resignation of President Kyösti Kallio during the Interim Peace, Risto Ryti was elected by the Electoral College as the new president of Finland on December 19, 1940, and Rangell rose to the position of Prime Minister.  In office, Rangell's expertise and influence dealt mainly with economic issues, while more important foreign policy power rested on Commander-in-Chief Mannerheim, President Ryti and Foreign Minister Witting.  Due to his connections to the IOC following the Berlin Olympics, Rangell's political orientation was seen as Pro-German. Finnish Guards' Rifle Battalion (Finnish: "Henkikaartin 3.  Suomen Tarkk’ampujapataljoona" , Swedish: "Livgardets 3:e finska skarpskyttebataljon" , Russian: Лейб-гвардии 3-й стрелковый Финский батальон , "Leib-gvardii 3-j strelkovyi Finski bataljon " ), colloquially known as Guard of Finland (Finnish: "Suomen kaarti" , Swedish: "Finska gardet" ) was a Finnish military unit during 1829-1905 based in Helsinki.  Continuing the legacy of Finnish Training Battalion (1817), it was part of the Imperial Russian Army and the only Finnish unit of the Russian Imperial Guard.  Furthermore, for large parts of its history, the battalion was the only operational Finnish military unit.  Because of its status as both a national showpiece and as a part of the Imperial Guard, it had a visible role in Finland.
Answer: 27 January 1951