Alexander Wedderburn, 1st Earl of Rosslyn, PC, KC was a Scottish lawyer and politician who sat in the House of Commons between 1761 and 1780 when he was raised to the peerage as Baron Loughborough. He served as Lord High Chancellor of Great Britain from 1793 to 1801.

Ayr Burghs was a district of burghs constituency of the House of Commons of the Parliament of Great Britain from 1708 to 1800 and of the House of Commons of the Parliament of the United Kingdom from 1801 to 1950. It elected one Member of Parliament (MP), using the first-past-the-post voting system.