(1966 - 1973)
Born in Indonesia in 1920, Glastra van Loon studied medicine, philosophy and sociology in Groningen, London, Amsterdam, Leiden, Salzburg and Gottingen. In 1965 he obtained his doctorate in legal studies. Former Rector of the Institute of Social Studies, Glastra van Loon was also politically active, advocating for the introduction of the elected prime minister and electoral structure based on a post system in the Netherlands, and holding the position of State Secretary of Justice in the Cabinet Den Uyl, as well as being a member of the Senate.