Question: Who was nicknamed "the Magnanimous" and a major love interest to Luisa Margarida de Barros Portugal?
Sentence (from "Luísa de Barros, Countess of Barral"): Luísa Margarida de Barros Portugal (13 April 1816 – January 1891), later Countess of Barral, was a Brazilian noble, preceptor of Brazilian princesses Isabel and Leopoldina, rumored to be the major love interest of Pedro II of Brazil and later part of Louis Philippe I of France's court.
Relevant evidence: Yes