neither masaccio nor masolino were able to work on the frescoes continuously, as they both kept getting other jobs to attend to. in 1428 masaccio was asked to go to rome to paint an altarpiece for one of the most important and ancient churches, santa maria maggiore. he only painted one panel, "saint jerome and saint john the baptist", before he died at the age of 27 years. masolino and perhaps another artist, domenico veneziano worked on, and finished the altarpiece, which was later broken into pieces and scattered to galleries in different countries. masaccio's panel is in the national gallery, london.