Clough Williams-Ellis, English-Welsh architect, designed Portmeirion (born 1883)

Sir Bertram Clough Williams-Ellis, CBE, MC was a Welsh architect known chiefly as the creator of the Italianate village of Portmeirion in North Wales. He became a major figure in the development of Welsh architecture in the first half of the 20th century, in a variety of styles and building types.

Portmeirion is a folly tourist village in Gwynedd, North Wales. It lies on the estuary of the River Dwyryd in the community of Penrhyndeudraeth, 2 miles (3.2 km) from Porthmadog and 1 mile (1.6 km) from Minffordd railway station. Portmeirion was designed and built by Sir Clough Williams-Ellis between 1925 and 1975 in the Baroque style and is now owned by a charitable trust. It has served as the location for numerous films and television shows, most famously as "the Village" in the 1960s television show The Prisoner.