Task: Question Answering
Input (English): Passage: Honoré IV died shortly after his throne was restored to him, and structural restoration of the palace began under Honoré V and was continued after his death in 1841 by his brother Prince Florestan. However, by the time of Florestan's accession, Monaco was once again experiencing political tensions caused by financial problems. These resulted from its position as a protectorate of Sardinia, the country to which it had been ceded by France following the end of the Napoleonic wars. Florestan, an eccentric (he had been a professional actor), left the running of Monaco to his wife, Maria Caroline Gibert de Lametz. Despite her attempts to rule, her husband's people were once again in revolt. In an attempt to ease the volatile situation Florestan ceded power to his son Charles, but this came too late to appease the Monégasques. Menton and Roquebrune broke away from Monaco, leaving the Grimaldi's already small country hugely diminished—little more than Monte Carlo.
Florestan died in 1856 and his son, Charles, who had already been ruling what remained of Monaco, succeeded him as Charles III (Illustration 15). Menton and Roquebrune officially became part of France in 1861, reducing Monaco's size at a stroke by 80%. With time on his hands, Charles III now devoted his time to completing the restoration of his palace begun by his uncle Honoré V. He rebuilt St Mary's Tower (Illustration 14) and completely restored the chapel, adding a new altar, and having its vaulted ceiling painted with frescoes, while outside the façade was painted by Jacob Froëschle and Deschler with murals illustrating various heroic deeds performed by the Grimaldi. The Guard Room, the former great hall of the fortress (now known as the State Hall), was transformed by new Renaissance decorations and the addition of a monumental chimneypiece.
Charles III also made serious attempts to find the various works of art and furniture looted, sold and dispersed during the revolution. Together with new purchases, a fine art collection once again adorned the palace which included not only family portraits such as that of Lucien I by de Predis; Honoré II by Philippe de Champaigne; the head of Antoine I by Hyacinthe Rigaud, and van Loo's portrait of Louise-Hyppolyte (Illustration 11) but also such masterpieces as The Music Lesson by Titian.
Charles III was also responsible for another palace in Monte Carlo, one which would fund his restorations, and turn around his country's faltering economy. This new palace was Charles Garnier's Second Empire casino, completed in 1878 (Illustration 16). The first Monaco casino had opened the previous decade. Through the casino Monaco became self-supporting. 
Question: What is the full name of the person who had been a professional actor?
Output (English): Prince Florestan.