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Anglesey is an island off the north west coast of Wales. It has two bridges which span the Menai Strait, connecting it to the mainland. Holy Island is considered part of Anglesey.
The Norse name Anglesey came into existence in the 10th century and was later adopted by Anglo-Norman occupiers during the invasion of Gwynedd.
The island is also known as Ynys Môn which is used for the UK Parliament and National Assembly constituencies.
With an area of 276 sq miles, Anglesey is the largest Welsh island, the sixth largest surrounding Great Britain and the largest in the Irish Sea.