Winwaloe was venerated as a saint at Landévennec until Viking invasions in 914 forced the monks to flee, with his body, to Château-du-Loir and then Montreuil-sur-Mer.
His relics were often taken on procession through the town.

Winwaloe's shrine was destroyed during the French Revolution in 1793.

He apparently acquired a priapic reputation through confusion of his name with the word gignere (French engendrer, "to beget") and was thus a patron of fertility as one of the phallic saints.
He is also the patron of Saint-Guénolé in Penmarch, Finistère.

In Cornwall, Winwaloe is the patron of the churches at Tremaine, St Wynwallow's Church, Landewednack, Gunwalloe and Poundstock as well as East Portlemouth in Devon and two lost chapels in Wales.
His feast day is 28 April and Gunwalloe feast is celebrated on the last Sunday of April.
The churches of St Twynnells, near Pembroke, Pembrokeshire and Wonastow, Monmouthshire may have been originally dedicated to him.
They were probably founded by his successor at Landévennec, Gwenhael, who certainly made trips to Great Britain.
Exeter Cathedral, Glastonbury Abbey, Abingdon Abbey and Waltham Abbey Church held small relics.
He was also popular in East Anglia where the abbey at Montreuil had a daughter house; St Winwaloe Priory in Norfolk was dedicated to him.
Winwaloe was venerated as a saint at Landévennec until Viking invasions in 914 forced the monks to flee, with his body, to Château-du-Loir and then Montreuil-sur-Mer. His relics were often taken on procession through the town.
Winwaloe's shrine was destroyed during the French Revolution in 1793.
He apparently acquired a priapic reputation through confusion of his name with the word gignere (French engendrer, "to beget") and was thus a patron of fertility as one of the phallic saints. He is also the patron of Saint-Guénolé in Penmarch, Finistère.
In Cornwall, Winwaloe is the patron of the churches at Tremaine, St Wynwallow's Church, Landewednack, Gunwalloe and Poundstock as well as East Portlemouth in Devon and two lost chapels in Wales. His feast day is 28 April and Gunwalloe feast is celebrated on the last Sunday of April. The churches of St Twynnells, near Pembroke, Pembrokeshire and Wonastow, Monmouthshire may have been originally dedicated to him. They were probably founded by his successor at Landévennec, Gwenhael, who certainly made trips to Great Britain. Exeter Cathedral, Glastonbury Abbey, Abingdon Abbey and Waltham Abbey Church held small relics. He was also popular in East Anglia where the abbey at Montreuil had a daughter house; St Winwaloe Priory in Norfolk was dedicated to him.
Winwaloe