Cornish landowner and baronet, son of Sir William Molesworth, 6th Baronet. He inherited the baronetcy in 1798 and was reported as lord of Affaland Manor by inheritance from the Arscotts. He died on 30 December 1823.

The manor connection is supported by the Clawton account; the exact date of his inheritance is not given.

Research sources:
- Samuel Lewis, Magna Britannia, Devonshire, early nineteenth-century account of Clawton, stating that Affaland Manor belonged to Sir Arscott Ourry Molesworth, Baronet, by inheritance from the Arscotts. — https://upload.wikimedia.org/wikipedia/commons/e/e3/Magna_Britannia%3B_being_a_Concise_Topographical_Account_of_the_Several_Counties_of_Great_Britain%2C_Vol._VI-_containing_Devonshire%2C_Part_II_%28IA_dli.granth.75056%29.pdf