Sir Marcus Lowther-Crofton, 1st Baronet
Sir Marcus Lowther-Crofton, 1st Baronet was an Anglo-Irish politician.
Born Marcus Lowther, he was the son of Gorges Lowther and Jane Beresford. On 9 September 1743 he married Catherine Crofton, daughter of Sir Edward Crofton, 3rd Baronet, and in 1745 he legally changed his surname to Lowther-Crofton.
Lowther-Crofton represented Ratoath in the Irish House of Commons between 1753 and 1760. On 12 June 1758 he was created a baronet in the Baronetage of Ireland. He represented Roscommon Borough from 1761 to 1768, before sitting again for Ratoath between 1769 and 1776.
He was succeeded in his title by his eldest son, Edward Crofton, whose wife, Anne Crofton, was created Baroness Crofton in 1797.
