Slideshow: Which patron saint..?

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The letter D
The name of this patron saint begins with the letter D.
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A red dragon on a green and white background
This patron saint comes from a country whose flag is a red dragon on a green and white background.
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The city of Cardiff
This patron saint comes from a country whose capital city is Cardiff...in Wales.
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Daffodils
On this patron saint's day - 1st March - many people choose to wear a daffodil. But who is it?

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