Battle of Salamandastron (The Long Patrol)

Another battle taking place near the mountain of Salamandastron, this battle was between Lady Cregga Rose Eyes and her Long Patrol, and the Firstblade Gormad Tunn and his Rapscallions. The vermin horde was soundly defeated, and Gormad mortally wounded (he died not long after). After Gormad's death, his son and successor Damug Warfang had a mortal fear of both Cregga and the mountain, and refused to consider attacking it again.

The Rapscallions would eventually be annihilated at the Battle of the Ridge of a Thousand.

Books
This battle at Salamandastron is mentioned at least twice at the beginning of The Long Patrol.