Rhosymedre is a hymn tune written by the 19th-century Welsh Anglican priest John David Edwards.
Edwards named the tune after the village of Rhosymedre in the County Borough of Wrexham, Wales, where he was the vicar from 1843 until his death in 1885.
[3] Although best known in this original version for solo organ, it is also well known as an orchestral arrangement by Arnold Foster published in 1938.
[3][4] The "Prelude on the hymn tune 'Rhosymedre'" by Ralph Vaughan Williams was played at the funeral of Diana, Princess of Wales, at the request of her sister, Lady Sarah McCorquodale.
In 2008, to mark the 50th anniversary of the death of Vaughan Williams, Richard Morrison (chief music critic of The Times) arranged the piece for string quartet and solo tenor.