Rhys ap Gruffydd
Gwenllian's attempted defence nevertheless inspired further opposition to the Marcher Lords, ultimately leaving her son, Rhys ap Gruffydd as a much more powerful ruler than his parents had been. When Matilda and Stephen's differences were settled, and Matilda's son Henry II came to the throne, the renewed strength of central authority enabled Henry to push back Welsh princes to their pre-anarchy borders. The Lordship of Brecknock remained intact, and Sibyl's husband, Miles, remained its Lord.