From A Wiki of Ice and Fire
|Died||At Prince's Pass|
|Book(s)||A Feast for Crows (mentioned)|
A Feast for Crows
Behind the Scenes
The mention of Alester blowing a warhorn with his last breath may be a reference to The Song of Roland, in which Roland dies shortly after sounding a warhorn to call for aid from Charlemagne's army, after being ambushed.