Parsons, Sir, William, 4th Baronet of Birr Castle
- Pessoa singular
- 1731-1791
Sir William Parsons, 4th Baronet of Birr Castle, was born on 6 May 1731 to Sir Laurence Parsons, 3rd Baronet of Birr Castle, and Lady Mary Sprigge. He succeeded his father as the 4th Baronet of Birr Castle in 1749. In 1764 He became the head of the Parsons family upon the death of Richard Parsons, 2nd Earl of Rosse (of the first creation). Sir William Parsons die on 1 May 1791, and was succeeded in the baronetcy by his son, Sir Laurence Parsons.