The Abbasid Caliphate or Abbasid Empire was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abd al-Muttalib, from whom the dynasty takes its name. From Wikipedia
Lead isotope analysis confirms about 715 grams of the hoard’s silver originated in the Abbasid Caliphate, demonstrating Viking trade ties to the Middle East.