For 10 points, name this son of Geoffrey who became the first Plantagenet king.
This king oversaw Ranulf de Glanvill's defeat of William the Lion at the Battle of Alnwick, and he earlier forced his predecessor to sign the Treaty of Wallingford to make him the sole heir to the throne. This successor to Stephen of Blois limited the power of ecclesiastical courts after publishing the (*) Constitutions of Clarendon. He also married Eleanor of Aquitaine and had two of his knights go to Canterbury Cathedral and murder Thomas Becket. For 10 points, name this son of Geoffrey who became the first Plantagenet king.
This king oversaw Ranulf de Glanvill's defeat of William the Lion at the Battle of Alnwick, and he earlier forced his predecessor to sign the Treaty of Wallingford to make him the sole heir to the throne.
{Henry II} [or {Henry, Plantagenet}; prompt on {Henry}] [MB]