	With the conquest of Norse-Gaelic Dublin, and the ongoing entrenchment of the English in Ireland, the Crovan dynasty found themselves surrounded by a potentially threatening, rising power in the Irish Sea zone. The dynasty did not take long to realign itself with this new power, in the form of a dynastic marriage between Affreca and one of the most powerful of the incoming Englishmen—John de Courcy (d. "c." 1219).