Vienna-School art historian, Netherlandish specialist and Director of the Kunsthistorisches Museum, Vienna. Baldass studied in Graz, Halle (under Adolph Goldschmidt) and Munich before gaining his degree at the University in Vienna. His thesis, written under Max Dvořák and accepted in 1911, was on portraiture of the Emperor Maximilian. Baldass joined the Kunsthistorisches Museum in Vienna the same year, eventually being appointed curator in 1918. He married Paula Wagner, granddaughter of the architect Otto Wagner (1841-1918).