Complex sentence: Louis-Tullius-Joachim Visconti, an Italian-born architect and designer, was born in 1791 in Rome and died in 1853 in Paris.
Split into simpler sentences: Louis-Tullius-Joachim Visconti (1791-1853) was an Italian-born architect and designer. He was born in 1791 in Rome and died in 1853 in Paris.