After marrying Gusti Raden Ayu Koostimah, daughter of Pakubuwono X, Susuhunan of Surakarta, as civil servant ('"abdi dalem"') of the '"Kasunanan"' kingdom, he was promoted to the rank of '"Bupati Anom"', given the royal title '"Raden Mas Tumenggung"' and given an 'adult' name of '"Notonagoro"'.
[1] In 1949 he assisted in the founding of Gadjah Mada University in Yogyakarta,[2] later becoming a guest lecturer teaching agrarian law.
[3] He believed that Pancasila, no matter how phrased, kept the same basic meaning, namely as the state philosophy,[4] and that it is not a political concept but a world view.
[10] Notonagoro viewed the Indonesian government as a "monodualist" state, keeping both the cultural norms as well as national safety, peace, and order.
[12] According to Mustofa Anshori, assistant rector at Gadjah Mada University in 2006, Notonagoro helped establish the philosophical conceptualizations in the contextualization of Pancasila.