From A Wiki of Ice and Fire
|Title||Lord of Stonedance|
|Died||In 129 AC, at Dragonstone|
Fire & Blood (mentioned)|
The Princess and the Queen (mentioned)
As predicted by Ser Otto Hightower, Lord Gormon Massey sided with Princess Rhaenyra Targaryen and the blacks during the Dance of the Dragons, sitting among the lesser lords of the black council at Dragonstone.