Joseph ben Aaron was
king of the
Khazars during the 950s and 960s.Joseph was the son of
Aaron II, a Khazar ruler who defeated a
Byzantine-inspired war against Khazaria on numerous fronts. Joseph's wife (or probably, one of many wives) was the daughter of the king of the
Alans.
Whether Joseph was the
Khagan or the
Bek of the Khazars is contested among historians. He describes leading Khazar armies which seems to imply the role of the Bek. However, as he does not refer to a co-ruler in his writings, it is possible that by his time the two-king system had been abandoned altogether. (see
Khazar Kingship).
Joseph actively sought contact with Jews elsewhere in the
diaspora. He
corresponded with
Hasdai ibn Shaprut, a rabbi in
Cordoba, and invited him to settle in
Khazaria. He is also mentioned in the
Schechter Letter.
Joseph was involved in wars against the
Kievan Rus and the
Pechenegs, as well as sporadic fighting with the
Byzantines in the
Crimea. He reported that he was allied with the
Muslim states around the
Caspian Sea against
Varangian marauders from Rus' and
Scandinavia.
Joseph's ultimate fate is unknown. As the destruction of the Khazar empire by
Sviatoslav I of Kiev occurred soon after his correspondence with Hasdai (in 967 or 969), it is possible that Joseph was ruler during the Khaganate's collapse.
See also
Sources
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