|Battle of Sword-grass|
|Time||a little bit more than 640 years before the Age of Fire|
|Place||southern Hypatian territories|
|Hypatian Army (including elves)||unknown|
|Probably moderate or light||Probably heavy|
The Battle of the Sword-grass was fought by the Hypatian Empire against a southern foe. It turned an Hypatian victory.
Little is known of the battle, apart that it turned out an Hypatia victory. The grandfather of Rainfall took part at the battle and played an important role: he was rewarded with the land where was later built Mossbell.