What is "llanwarne"

Llanwarne is a village in Herefordshire, England. The population of the civil Parish as taken at the 2011 census was 380. It is approximately six miles north-west of Ross-on-Wye, near Harewood End and Pencoyd. Llanwarne means The church by the swamp/marsh or alders, according to the Oxford Dictionary of English Place-Names. The village's attractions, other than its scenic beauty, include the ruined Church of St. John, the Baptist. It was abandoned in 1864 due to constant flooding from the brook, the Gamber.