Complex sentence: In 1953 she left for Europe, where she earned her doctorate in Hispanic Literature in the University of Sorbona, where she presented her thesis with the subject of "The French exoticism in Mexico (From 1847 to 1867)".
Split into simpler sentences: In 1953 she left for Europe, where she earned her doctorate in Hispanic Literature in the University of Sorbona. It was there where she presented her thesis with the subject of "The French exoticism in Mexico (From 1847 to 1867)".