Hugh de Lacy was a prominent Anglo-Norman nobleman who became the Lord of Meath in the 12th century. He played a significant role in the Norman invasion of Ireland, which began in 1169. De Lacy was granted lands in Ireland by King Henry II of England, allowing him to establish control over the region and expand his influence. As Lord of Meath, de Lacy was responsible for the administration and defense of his territories. He built several castles, including Trim Castle, which served as a stronghold and symbol of Norman power in Ireland. His legacy is marked by the integration of Norman culture into Irish society.