Born in Helsinki, Ehrnrooth entered cadet school in 1922 and served in the Uusimaa Dragoon Regiment (Uudenmaan Rakuunarykmentti).
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General Ehrnrooth died on 26 February 2004, and is buried in Hietaniemi cemetery, Helsinki.
Adolf Hitler | Adolf Eichmann | Emil Adolf von Behring | Adolf Schwarz | Adolf Hurwitz | Adolf von Harnack | Adolf Seilacher | Adolf Loos | Adolf | Gustaf VI Adolf of Sweden | Georg Ehrnrooth | Adolf Galland | Adolf Anderssen | Petter Adolf Karsten | Hans Adolf Krebs | Gustav IV Adolf of Sweden | Gustav Adolf Grammar School | Adolf Muschg | Adolf Klose | Adolf Just | Adolf Jellinek | Adolf Erik Nordenskiƶld | Adolf, Duke of Holstein-Gottorp | Adolf Bernhard Marx | Richard Adolf Zsigmondy | King Gustav Adolf's Gymnasium | Johan Adolf Pengel International Airport | Henrik Ehrnrooth | Friedrich Adolf Riedesel | Casimir Ehrnrooth |
In the 2004 television programme Suuret suomalaiset (Great Finns) the Finns voted three World War II persons in the top four: Carl Gustaf Emil Mannerheim (1st), Risto Ryti (2nd), and Adolf Ehrnrooth (4th).