Complex sentence: He became Tory Member of Parliament for Weobly at the 1820 general election and Tory Member of Parliament for Plymouth in 1828 and was elevated to First Naval Lord in the Wellington ministry in September 1828 but resigned when the Government fell from power in November 1830.
Split into simpler sentences: He became Tory Member of Parliament for Weobly at the 1820 general election and Tory Member of Parliament for Plymouth in 1828 and was elevated to First Naval Lord in the Wellington ministry in September 1828. Cockburn resigned when the Government fell from power in November 1830.