The three subordinate clan leaders walked out of the palace in great embarrassment; they didn't give the petition to Azzy, of course, as they were merely trying to threaten him at Francis Blood's request.
How would they expect Azzy to be so resolute in his decision that he is willing to kick them out away, too, if they intend to side with the Blood Clan? At the very least, the Blood Clan is getting their lands, but they won't be getting theirs. Moreover, their clansmen wouldn't leave the clan village to settle elsewhere. The majority of their folk are simple farmers who have no idea about the outside world. They were actually scared to go outside of the village in the first place.
While their plan failed and Azzy also promised them that this matter would be deeply buried between themselves, their ego was deeply hurt in the process, and Gredor has now sworn to have revenge on Azzy no matter what.