Eugène de Rastignac (French pronunciation: [øʒɛn də ʁastiɲak]) is a fictional character from La Comédie humaine, a series of novels by Honoré de Balzac. He appears as a main character in Le Père Goriot (1835), and his social advancement in the post-revolutionary French world depicted by Balzac can be followed through Rastignac's various appearances in other books of the series. Rastignac is initially portrayed as an ambitious young man of noble, albeit poor, extraction who is at times both envious of and naive about high society.
https://en.wikipedia.org/wiki/Eug%C3%A8ne_de_Rastignac