William "Penfro" Rowlands (19 April 1860 – 22 October 1937)[1] was a Welsh schoolteacher and composer.
[2] Rowlands was born at Llys y Frân, Maenclochog, Pembrokeshire (Sir Benfro in the Welsh language, hence his middle name).
Probably his best-known composition is the hymn-tune "Blaenwern", composed in 1905 and often used as the setting for Love Divine, All Loves Excelling.
As well as being a church musician, Rowlands taught in several schools and was conductor of the Morriston United Choral Society.
A memorial stone to the composer was unveiled in March 1998, close to his birthplace.