The Winds of Winter
This information has thus far been released in a sample chapter for The Winds of Winter, and might therefore not be in finalized form. Keep in mind that the content as described below is still subject to change.
After Princess Arianne Martell and her party disembark from the Peregrine at Weeping Town Arianne sends Joss Hood to the Loon in order to gather intelligence, as she knows the common room is rife with rumors.
In the Loon, Joss learns that half a hundred men and boys from the Weeping Town have set off north to join Jon Connington at Griffin's Roost, including young Ser Addam Whitehead, old Lord Whitehead’s son and heir.