Adulterine

As soon as he regained power, he began the process of demolishing the adulterine castles, which were hated by the peasants due to their being employed as forced labor to build and maintain them.

During this breakdown of central authority, the nobles ran amok building adulterine castles (i.e. castles erected without government permission).

Henry destroyed the remaining adulterine castles and expanded his power through various means and to different levels into Ireland, Scotland, Wales, Flanders, Nantes, Brittany, Quercy, Toulouse, Bourges and Auvergne.