Diallos Hoslow
About
Diallos Hoslow is a scion of House Hoslow and the younger brother of Juno Hoslow. From a young age, Diallos was all talk and no trousers, with an inability to commit to action. As a result, Juno inherited the Hoslow legacy without resistance. Juno loved his brother dearly and showered him with adoration. Diallos, in turn, admired his brother, a mighty warrior who lived up to the bloody legacy of House Hoslow. Diallos aspired to be like his older brother, knowing that pursuing the bloody legacy of their house would break his brother's heart.
Diallos had a servant by the name of Lanya and the two were companions since childhood. At some point, the two set out on a journey in the Lands Between, but Diallos lost track of the fickle Lanya, and the two became separated. He made his way to Roundtable Hold where he implored the Hold's visitors to keep an eye out for Lanya.
Diallos eventually managed to track Lanya down to Liurnia of the Lakes, where he found her dead. He deduced that the recusants of the Volcano Manor were behind her death and swore vengeance upon them.
(Source: Elden Ring Wiki)