Wikipedia
Pesakh (general)
A Khazar Jewish general mentioned in the Schechter Letter. Pesakh was military commander of the region around the Strait of Kerch who defeated the armies of the Rus' prince "HLGW" (most likely Oleg of Novgorod) around the year 941 in the Taman region. His title is given as Baliqchi which translates roughly as "Fisherman" (or, in alternate translation "Fish-Lord"); scholars have hypothesized that this was a naval rank within the Khazar military.