Sir Roger Mostyn, 3rd Baronet (31 July 1673 – 5 May 1739), of Mostyn Hall, Holywell, Flintshire, was a Welsh Tory politician who sat in the English and British House of Commons for 25 years from 1701 to 1735.
Sir Roger Mostyn, 3e baronnet (31 juillet 1673 - 5 mai 1739), de Mostyn Hall, Holywell, Flintshire, est un politicien gallois conservateur qui a siégé à la Chambre des communes pendant 25 ans, de 1701 à 1735. (fr)
Sir Roger Mostyn, 3rd Baronet (31 July 1673 – 5 May 1739), of Mostyn Hall, Holywell, Flintshire, was a Welsh Tory politician who sat in the English and British House of Commons for 25 years from 1701 to 1735. (en)