Which group of people invaded Ireland in the 12th Century, originally coming from Normandy in France?

The correct answer is the Norman people, who invaded Ireland in the 12th century. The Normans originated from Normandy in France, where they had settled after the Viking Age. Their invasion of Ireland was part of a broader expansion and conquest that included significant incursions into England and Wales. In Ireland, this incursion began in 1169, leading to the establishment of Anglo-Norman rule in parts of the country.

The Normans brought with them advanced military tactics, architectural styles, and feudal systems that would significantly influence the landscape of Ireland. The impact of their invasion established not only military control but also cultural and societal changes that would shape Ireland's history for centuries to come. This invasion was a key moment in the development of Irish history, marked by the blending of cultures and the beginning of a new era of foreign influence.

Other groups, such as the Vikings, Celts, and Anglo-Saxons, had their respective histories and influences in Ireland, but they did not originate from Normandy or invade in the 12th century in the same way that the Normans did.