Llanddew is a small village and community about 2 km or 1 mile north-east of Brecon, Powys, Wales.

These incorporate a double-sided vaulted well, known as Bishop Gower's Well.

Llanddew Palace was the favoured residence of 12th-13th century clergyman and author Giraldus Cambrensis (Gerald of Wales), and hosted the Archbishop of Canterbury Baldwin of Exeter in 1188 during his mission through Wales recruiting for the Crusades.

[citation needed] The building dates from around the 13th century and has a cruciform shape, with a central tower.

At one time, there were monastic buildings at the church, and the monks would go around the local area preaching and giving communion.