Complex sentence: The twenty-first Macdowall Laird was an advocate of at the Scottish Bar and was elected to Parliament and from 1783 to his death in 1810, sat in the House of Commons at Westminster.
Split into simpler sentences: The twenty-first Macdowall Laird was an advocate at the Scottish Bar and was elected to Parliament. From 1783 to his death in 1810, he served in the House of Commons at Westminster.