Wraith of Fianna
Diarmuid was born in the Ludeanian Principalities, specifically under the banner of the Principality of Fianna. When he came of age he joined the Knights of Fianna who swore fealty to the young Prince FIonn Cumhail. Diarmuid quickly gained favor within the Knights when he befriended Fionn at the castles tavern. It was after Diarmuid gained favor that he met one of the Fionns maids Grainne. An intense romance developed between Diarmuid and Grainne over the next few years. However on the eve of Diarmuids twenty sixth birthday. The castle was overrun by a neighboring Prince. In the mad dash to evacuate the castle Diarmuid came across Grainne as she stood over the corpse of Fionn bloody dagger in hand. Ever since that day Diarmuid has sworn to bring about the stability of the region. By eradicating all those who opposed the late Prince Fionn and getting vengeance upon his old love. Since swearing that oath Diarmuid has come to be known as the Wraith of Fianna within the Ludeanian Principalities.