Alexios Atreides was the young son of Paulos II Atreides.
During Feyd I's rule, he followed his father in exile, along with the last survivors of the Imperial House.
In 1044 AG their rebel headquarters suffered a surprise attack during the Civil War. Paulos was killed and Alexios, while still underage, escaped with Prince Corrin.
After Josif I became emperor in 1099 AG, Alexios was restored to all his ancestor's titles and named Siridar Count of Hoosak Norn.