Emissaries were immediately dispatched to inform King Philip IV of France of the intentions of the English. They also negotiated a treaty by which the Scots would invade England if the English invaded France, and in return the French would support the Scots. The treaty would be sealed by the arranged marriage of John's son Edward and Philip's niece Joan. Another treaty with King Eric II of Norway was hammered out, in which for the sum of 50,000 groats he would supply 100 ships for four months of the year, so long as hostilities between France and England continued. Although Norway never acted, the Franco-Scottish alliance, later known as the Auld Alliance, was renewed frequently until 1560.