William Lloyd (b. Rhos Goch, Llaniestyn, Caernarvonshire, Wales, 1786; d. Caernarvonshire, 1852) composed MEIRIONYDD, which was first published in manuscript form with the name BERTH in Caniadau Seion (Songs of Zion, 1840, ed. R. Mills). The tune is named after the Welsh county Meirionydd in which L…