 San Giacomo Scossacavalli ( also known as San Giacomo a Scossacavalli ) was a church in Rome important for historical and artistic reasons . The church , facing the Piazza Scossacavalli , was built during the early Middle Ages and since the early 16th century hosted a confraternity which commissioned Renaissance architect Antonio da Sangallo the Younger to build a new shrine . This was richly decorated with frescoes , painted ( among others ) by mannerist artist Giovanni Battista Ricci and his students . The church was demolished in 1937 , when Via della Conciliazione ( the avenue leading to St. Peter 's Basilica ) was built and the piazza and central part of the Borgo rione were demolished . Many decorative elements still exist , since they were preserved from demolition . 
