John Jones Jenkins, 1st Baron Glantawe was a Welsh tin-plate manufacturer and Liberal politician. Having commenced working at the Upper Forest Tinplate Works in Morriston, at the age of fifteen, he ended his life as one of the wealthiest men in Glamorgan.

Caerfyrddin is a proposed parliamentary constituency in Wales to return one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, from the next general election. It previously existed between 1542 and 1997 under the English version of the name, Carmarthen. It was named Carmarthen Boroughs from 1832 to 1918; between 1997 and 2024 it was divided between Carmarthen East and Dinefwr constituency and Carmarthen West and South Pembrokeshire.