Original: His greatest works are I Capuleti ed i Montecchi (1830), La sonnambula (1831), Norma (1831), Beatrice di Tenda (1833), and I puritani (1835).
Simplified: His first success was Il pirata in 1827, followed by I Capuleti e Montecchi in 1830. Then came his most famous operas La sonnambula (1831), Norma (1831) and his last I puritani (1835), which proved a sensational triumph.