As St. Patrick is Ireland’s patron saint, shamrock has been used as a symbol of Ireland since the 18th century, in a similar way to how a rose is used for England, thistle for Scotland and leek for Wales.
The shamrock refers to the young sprigs of clover or trefoil. It is known as a symbol of Ireland, with St. Patrick having used it as a metaphor for the Christian Trinity, according to legend.
This window is in Bridgenorth Town Hall
The Windows Group
ANYTHING IRISH – Tuesday Afternoon