Battle of Tisiyra
The Battle of Tisiyra was a land battle fought on 27 March 1770, between a Trellinese army under the Duke of Emla and a Miróist army under Lasika Rumoi. Rumoi held the town of Tisiyra against the approaching Trellinese army, which was travelling to relieve the Third Siege of Zarthalin. Outnumbered more than two to one, the Miróists were soundly defeated in one of the last engagements of the Retikan theatre of the War of the Velaran Succession.
At the outbreak of the War of the Velaran Succession, which pitted forces loyal to Elcmar IV of Trellin against Prince Miró of Txir, a claimant to the throne of the Kingdom of the Isles of Velar, Duke Szatas of Tisiyra chose to side with the Trellinese. Tisiyra was an important market town in the northeast of Pelna, a Velaran territory, and its defection was a serious blow to the Miróist cause in Pelna and Retikh. Szatas led two thousand troops to the first siege of Zarthalin, helping Kenti of Ja'ekha capture the Retikan capital. The Miróist general Atnas Laidakon tried and failed to retake Zarthalin soon after, and he spent the following months fighting to restore Velaran authority in Pelna. Laidakon encountered Duke Szatas' army at h in August 1769 and routed it, with Szatas fleeing to Trellinese Saheri. Tisiyra surrendered shortly afterward and remained under Miróist control thereafter.
The Duke of Emla entered Pelna in late 1769 in support of Elcmar. With 11,000 men under his command, he made rapid progress eastward, bypassing Tisiyra and penetrating into western Retikh. Skirmishes and raids by Miróist partisans, as well as Emla's decision to leave token presences at the locations he subdued, cost him over a thousand men by March 1770; his was nevertheless the largest army in Pelna when it once more drew near Tisiyra in late March.
As the Third Siege of Zarthalin wore on, Tisiyra was occupied by the Miróist commander Lasika Rumoi, with 4,600 men. Laidakon, who had been joined by general Kúfet Heruyel, wrote to Rumoi asking him to assist at Zarthalin. Rumoi responded that he was holding Tisiyra against the approaching Trellinese army, intending to use its defensible position in the foothills of the Vekra Retiqa to his advantage.
Rumoi's defeat meant that Emla was now unimpeded in his march to relieve Zarthalin. As soon as they learned of the outcome of the battle, Laidakon and Heruyel abandoned their siege rather than risk being surrounded, and they began their flight to the coast. This was thus the last major battle in defence of Pelna and Retikh, where the Miróist leaders would avoid combat until they were cornered waiting for their transports in the Battle of the Plain of Marúna.