Sir Theodosius Boughton, 7th Baronet

In 1775, at age 15 he was sent away to Eton College in Berkshire, where by 1777 he had contracted venerial disease (likely syphilis) which left him in a poor state of health, soon afterwards he was brought home by his mother.

[4] Later that night, while he had just turned 20, his mother stood by his bed and insisted that he drink the draught that the apothecary had prepared; he said it tasted bad, but drank it anyway with a piece of cheese.

A Coroner's inquest ruled that Boughton's cause of death was poisoning and returned a verdict of murder against Donellan.

Despite the preponderance of circumstantial evidence, and Donellan's claims of innocence, he was convicted, condemned and executed on 2 April 1781.

[5] Boughton's widowed sister subsequently married Sir Egerton Leigh Bt, 2nd Baronet (1762-1818).