The historian Theophilus Jones (1759-1812) was born in Brecon but spent most of his childhood in Llangamarch, where his father was vicar. He was educated at the school at Christ College, Brecon, and worked as a solicitor before being appointed deputy registrar to the archdeaconry. He began his detailed research into the history of his native county soon afterwards and the first volume of his 'History of the County of Brecknock' was published in 1805, followed by the second volume in 1809. Jones died in 1812 and was buried in Llangamarch. This second edition, which incorporates the two volumes, was published in 1898 with some additions.