Rǫgnvaldr's increasing interaction with the English Crown after Courcy's fall suggests that the English king not only orchestrated Courcy's undoing, but purposely detached Rǫgnvaldr from the latter. Such an act not only considerably weakened Courcy, but lessened the chance of a Lacy counterstroke against Rǫgnvaldr that could potentially destabilise the Irish Sea region. In fact, the collapse of Rǫgnvaldr's marital alliance with Llywelyn ap Iorwerth took place at about the same time, and it is possible that this breakup was masterminded by the English as well.