Blaenwern is a Welsh Christian hymn tune composed by William Penfro Rowlands (1860–1937), during the Welsh revival of 1904-1905. 'Blaenwern' was first published in Henry H. Jones' Cân a Moliant (1915).
The meter of the tune is 8.7.8.7.D (alternating lines of eight and seven syllables) in F major key. The tune is named after a farm in Pembrokeshire where Rowlands convalesced in his youth. It is commonly used as a setting for the hymn Love Divine, All Loves Excelling, but also in other settings including the Welsh Deued Dyddiau O Bob Cymysg by William Williams Pantycelyn, and Calon Lân by Daniel James. It also became familiar to a wider audience through the Billy Graham crusades when it was used as a setting to the words What a friend we have in Jesus
As a setting for Love Divine it is a popular choice at English weddings and was voted as one of Britain's ten favourite hymns in October, 2005.[1] Love Divine, All Loves Excelling, set to Blaenwern, has been selected as one of three hymns to be sung at the wedding of Prince William and Catherine Middleton,[2] the others being Guide Me, O Thou Great Redeemer, set to Cwm Rhondda, and Jerusalem.