|Title || Lord of Haystack Hall|
|Allegiance || House Errol|
|Book(s) || A Dance with Dragons (mentioned)|
Lord Sebastion Errol is Lord of Haystack Hall and head of House Errol in the Stormlands.
A Clash of Kings
Ser Cortnay Penrose acknowledges a "Lord Errol" at the parley beneath the walls of Storm's End who supports Stannis Baratheon. It is probable it is Lord Sebastion Errol.
A Dance with Dragons
Sebastion has become Lord of Haystack Hall after the death of Lady Shyra Errol.