|Battle at the Mander|
|Conflict || Robert's Rebellion|
|Date || 283 AC|
|Place || mouth of the Mander|
|Result || Rebel victory|
A battle at the Mander occurred in 283 AC near the end of Robert's Rebellion. House Greyjoy achieved a negligible victory over the Shield Islanders at the mouth of the Mander.
Quellon Greyjoy, Lord of the Iron Islands, desired neutrality for the ironmen during the civil war. After Pyke was informed of the death of Crown Prince Rhaegar Targaryen in the Battle of the Trident, however, Quellon was convinced by his eldest sons—Balon, Euron, and Victarion—to join the rebels as soon as possible or else lose all chance at spoils. Quellon led fifty longships in attacking the Reach, who were royalist supporters of House Targaryen. Since the intentions of House Lannister of Casterly Rock were as yet unknown, most of the ironmen's fleet remained at home to guard against the westerlands.
The Greyjoys raided the coast of the Reach, sinking or capturing some ships and raiding some villages and towns. They were unexpectedly met at the mouth of the Mander by the longships of the Shield Islands, however. Twelve longships were sunk or captured in the battle, with the Greyjoys emerging the victor. The aged Lord Quellon was slain during the fighting, however.
Although the ironmen won the battle, Quellon's eldest son and heir, Balon Greyjoy, decided to return to Pyke to claim the Seastone Chair of the Iron Islands, and the Iron Islands' contribution to Robert's Rebellion was minimal. While the Greyjoys were attacking the Reach, Lord Tywin Lannister joined the rebels and ordered the Sack of King's Landing by the westermen.