Complex sentence: Carlo Marchionni (Rome Baptized 16 February 1702 in St. Marcellus Parish 10 February 1702--Rome 28 July 1786) was a prominent architect in Rome; he was also a sculptor and a virtuoso draughtsman, who mixed in the artistic and intellectual circles.
Split into simpler sentences: Carlo Marchionni (10 February 1702 Baptized 16 February 1702 in St. Marcellus Parish--28 July 1786) was an Italian architect. He was also a sculptor and a virtuoso draughtsman, who mixed in the artistic and intellectual circles.