The Black Dragon's Men
The men who rose for Daemon Blackfyre at Redgrass Field and their unreconciled sons: broken lords, bitter knights, and schemers who toast 'the king across the water' — and gather, in 212, under a milk-white roof by the Gods Eye.
The fuller tale
Every man who rode under the black dragon at Redgrass Field and lived to ride home again carried something back from that field besides his wounds — a grievance the crown's pardon never quite dissolved, nursed quietly for over a decade in halls where the wrong company could still be counted on to raise a toast to a dead pretender.
'The king across the water' is the toast, and it functions less as an active plot for most of those years than as a private ritual of disappointment — men reminding each other, and themselves, that the war they lost still feels, to them, like the war that should have been won.
That private ritual becomes an actual conspiracy again in 211 and 212 AC, when Lord Gormon Peake, Black Tom Heddle, Ser Alyn Cockshaw, and a disguised Daemon II Blackfyre gather under Lord Butterwell's roof at Whitewalls, using a wedding as cover for the second attempt Redgrass Field's survivors had spent a decade quietly hoping for.
Not every old soldier of that field answered the second summons. Ser Eustace Osgrey, who had ridden for Daemon I himself in 196 AC, chose reconciliation instead — his marriage to Lady Rohanne Webber closing his own account with the old cause before Whitewalls ever unraveled, one veteran's proof that the grudge did not have to be permanent, even among men who had once meant it entirely.
The page and the screen
The Whitewalls conspiracy belongs to The Mystery Knight and has no screen adaptation yet; the aired Hedge Knight season references Redgrass Field only as history its characters carry, not as a plot the show has dramatized directly.