[1] Born in the hospital in Vaduz, Quaderer is the son of Jakob, a bank employee, and Helen, née Alexander.
After these nearly twenty years abroad, he returned to Liechtenstein and, with two partners, founded Multinova Treuhand AG in Schaan.
[5] When he ran for re-election in 2017 he wrote in a candidacy statement that “With the founding of the independents, a political dream has come true for me.
The fact that the independents achieved four mandates at their first participation in a state election is actually still something incredible for me….I think we have left a mark on Liechtenstein politics.
[6][7][8] Quaderer married his wife, Jacqueline (Jackie) Swaby (born 9 February 1957), on 23 August 1986.