|Died||In 300 AC, Meereen|
Mossador and his three siblings were captured in their native island of Naath by raiders from the Basilisk Isles, and sold into slavery in Astapor. His sister Missandei was trained as a scribe, but Mossador and his two brothers were gelded and trained by the Good Masters to be Unsullied. Mossador and Marselen survived the harsh training, but their other brother did not.
A Storm of Swords
Mossador is purchased with the rest of the Unsullied by Daenerys Targaryen, and then freed. When Daenerys tells the Unsullied to abolish the practice of choosing a new name every day, Mossador goes back to his birth name.
A Dance with Dragons
Mossador, while on patrol with another Unsullied named Duran, was ambushed. Both were crushed by falling stones beneath the river wall, dropped on them by the Sons of the Harpy. When Missandei is told, she cries and grieves for her brother.