Complex sentence: The football division kept the name CURCC Peñarol although on March 12,1914 it changed its name to "Club Atlético Peñarol", which has remained since.
Split into simpler sentences: The football division kept the name CURCC Peñarol. On March 12,1914 CURCC changed its name to "Club Atlético Peñarol", which has remained since.