Short answers, pulled from the story.
Pauline Bonaparte was the sixth child of Letizia Ramolino and Carlo Buonaparte, born on the 20th of October 1780 in Ajaccio, Corsica. Napoleon was her elder brother and the first emperor of the French. She is said to have been his favorite sister and was the only Bonaparte sibling to visit him during his exile on Elba.
Pauline married General Charles Leclerc in French-occupied Milan on the 14th of June 1797. Leclerc died on the 1st of November 1802 in Saint-Domingue, likely from yellow fever, while serving as Governor-General of the colony. She later married Camillo Borghese, 6th Prince of Sulmona, in August 1803.
Pauline accompanied her husband General Leclerc when Napoleon appointed him Governor-General of Saint-Domingue, the French colony in the West Indies that would become modern-day Haiti. The expedition, which departed Brest on the 14th of December 1801, was sent to restore French authority after a rebellion that had begun in 1791.
Napoleon made Pauline the sovereign Princess and Duchess of Guastalla in 1806. She subsequently sold the duchy to Parma for six million francs, retaining only the title of Princess of Guastalla.
After Waterloo, Pauline moved to Rome, where she lived under the protection of Pope Pius VII. She settled in a villa between the Porta Pia and the Porta Salaria, known as Villa Paolina. Her Paris home, the Hotel de Charost, was sold to the British government and used as the Duke of Wellington's official residence as British Ambassador to France.
Pauline Bonaparte died on the 9th of June 1825 at the age of forty-four in the Palazzo Salviati-Borghese in Florence. The official cause of death was given as a tumor on the stomach, though pulmonary tuberculosis has also been identified as a likely cause.