[2] Walter de Lacy, as Lord of Meath, was one of the most powerful magnates in Ireland.

King John I of England doubted his loyalty and so took de Lacy's property into his possession.

In 1208 de Braose used Weobley Castle to attack the king's property in Herefordshire.

He fled to Ireland, seeking safety with Walter de Lacy in Trim Castle; John pursued him and punished the pair.

As a result, all the de Lacy property was taken into the possession of the Crown.