Complex sentence: On 7 June 1739 Lord Uxbridge remarried to Elizabeth (born 3 March 1674), a member of another Staffordshire county family as daughter of the late Sir Walter Bagot, 3rd Baronet (to whose Parliamentary seat Uxbridge had succeeded in 1695).
Split into simpler sentences: On 7 June 1739 Lord Uxbridge remarried to Elizabeth Bagot (born 3 March 1674). She was a member of another Staffordshire county family, the daughter of the late Sir Walter Bagot, 3rd Baronet (to whose Parliamentary seat Uxbridge had succeeded in 1695).