what was the king's response?
Edward II flatly refused and roundly cursed the envoys.
Parliament of 1327
They failed in this mission: Edward flatly refused and roundly cursed them. The envoys returned to Westminster on 12 January; 
what is parliament of 1327? It the Parliament of England that sat between 7 January and 9 March 1327. when did the constitutional crisis happened in this parliament? 1326. what was this crisis all about? The crown being transferred between two living kings. where did this crisis take place? Westminster, England. what was the attendance of this aforementioned parliament? 26 of the 46 barons. what happened to it during the king's absence? The parliament could only pass statutes with the monarch present, Edward II's refusal to attend failed to prevent the parliament from taking place, the first time this had ever happened.
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Parliament of 1327 [SEP] The King's absence
Before parliament met, the lords had sent Adam Orleton (the Bishop of Hereford) and William Trussell to Kenilworth to see the King, with the intention of persuading Edward to return with them and attend parliament. They failed in this mission: Edward flatly refused and roundly cursed them. The envoys returned to Westminster on 12 January; by which time parliament had been sitting five days. It was felt that nothing could be done until the King had arrived: historically a parliament could only pass statutes with the monarch present. On hearing from Orleton and Trussell how Edward had denounced them, the King's opponents were no longer willing to let his absence stand in their way.