His works have included numerous publications on the political and diplomatic history of Liechtenstein.
He graduated from high school in 1962 and then from 1962 to 1968 he studied history in Freiburg im Breisgau and Vienna.
[1] From 1969 to 2002 Quaderer worked as a high school teacher for history and German languages in Vaduz.
[1][2][3] From 1986 to 2005 he was a board member of the Historical Association of the Principality of Liechtenstein, and has been its chairman since 1996.
[4] Quaderer married Elfriede Vogt (born 30 June 1950) on 14 April 1974 and they have two children together.