Raphael also died, in his mid-30s, in 1520, before any important changes could be made to the building. The next architect was Peruzzi who like some of the ideas that Raphael had, but did not like the Latin Cross plan. Peruzzi went back to Bramante's Greek Cross plan. But there were so many arguments in the church that the building stopped completely. Then in 1527 Rome was invaded by Emperor Charles V. Peruzzi died in 1536 without his plan being built. The only main parts of the building which had been constructed were Bramante's four big "piers" to hold the dome.