The Fenton Baronetcy, of Mitchelstown in the County of Cork, was a title in the Baronetage of Ireland. It was created on 22 July 1661 for Maurice Fenton. He was married to Elizabeth Waller, who after Fenton's death married as her second husband Sir William Petty

William Petty

Sir William Petty FRS was an English economist, scientist and philosopher. He first became prominent serving Oliver Cromwell and Commonwealth in Ireland. He developed efficient methods to survey the land that was to be confiscated and given to Cromwell's soldiers...

 and was created Baroness Shelburne

Earl of Shelburne

Earl of Shelburne is a title that has been created two times while the title of Baron Shelburne has been created three times. The Shelburne title was created for the first time in the Peerage of Ireland in 1688 when Elizabeth, Lady Petty, was made Baroness Shelburne. She was the wife of the noted...

in her own right. The title became extinct on the early death of the second Baronet in 1671.

Fenton Baronets, of Mitchelstown (1661)

• Sir Maurice Fenton, 1st Baronet (c. 1622-1664)
• Sir William Fenton, 2nd Baronet (c. 1655-1671)