Complex sentence: The series originally included an 1852 statue of Joan of Arc by François Rude, which was moved to the Louvre in 1872 because it was considered too fragile to remain outdoors.
Split into simpler sentences: The series originally included an 1852 statue of Joan of Arc by François Rude originally. It was moved to the Louvre in 1872 because it was considered too fragile to remain outdoors.