Complex sentence: During the Restauration of the Bourbon dynasty, the "Faubourg" recovered its past glory as the most exclusive high nobility district of Paris and, home to the Ultra Party, was the political heart of the country.
Split into simpler sentences: During the Restauration of the Bourbon dynasty, the "Faubourg" recovered its past glory as the most exclusive high nobility district of Paris. Moreover, home to the Ultra Party, it was the political center of the country.