From 1927 to 1930, the Princess attended lectures at Leiden University (Leiden, the Netherlands). During those years, Princess Juliana lived with several fellow students in Katwijk (nearby Leiden). The choice of subjects was based on her future role as head of state, on the one hand, and on her personal interest in literature and religion, on the other. During her studies, the Princess actively participated in student life as a member of the Association of Female Students in Leiden (VVSL). Her studies were rewarded with an honorary doctorate in literature and philosophy. Her supervisor was the well-known historian Johan Huizinga.
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According to an article in De Groene Amsterdammer:
Juliana studied at Leiden University for two years. The curriculum included old national law, general history, customary law of the Dutch East Indies and international law, Dutch literature, French literature, religious history and also, remarkably enough, Germanic mythology. Many prominent scholars devoted themselves to the education of the future queen — such as writer Albert Verwey and historian Johan Huizinga, a favourite of the princess. During her student years, Juliana lived with a few fellow students «in rooms» in a villa just outside Katwijk. It was her first introduction to the outside world, and it did not always go smoothly. In the changing rooms of the rowing club, she was laughed at for her old-fashioned underwear. During a rowing competition of her student association VVSL, she panicked completely when her fellow students caused her boat to capsize. Wilhelmina intervened. After two years of study, she was awarded an honorary doctorate. Wilhelmina cannot bear the idea of her daughter being examined by a subject.-------------------------------------------------------------------
https://nl.wikipedia.org/wiki/Sophia_AntoniadesSophia L. Antoniadis or Antoniades (Greek: Σοφία Αντωνιάδη) (Piraeus, 31 July 1895 - Athens, 25 January 1972) was the first female professor at Leiden University. From 10 July 1929 to 30 September 1955 Antoniadis was professor of medieval and modern Greek (officially: Greek Language and Literature of the Ancient Christian, Byzantine and Modern Periods). Her inaugural lecture was entitled L'importance du grec moderne.
In 1929 Antoniadis was appointed extraordinary professor at Leiden University. From 1948 to 1954 she was also extraordinary professor of Modern Greek language and literature at the University of Amsterdam. Her chair in Leiden was converted into a full professorship in 1953.
According to Mineke Bosch, Antoniadis was possibly appointed (at Leiden) because there was no male candidate for the position. She was the successor of D.C. Hesseling. As a student of Hubert Pernot, Hesseling's friend and colleague in Paris, she was one of the few candidates who could somewhat oversee all these disciplines.I couldn't find info that it was she who taught Juliana about Greek literature at Leiden University.