Original sentence: George Castriot (, 6 May 1405 – 17 January 1468), known as Skanderbeg ( or Skënderbeu from ), was an Albanian nobleman and military commander, who served the Ottoman Empire in 1423–43, the Republic of Venice in 1443–47, and lastly the Kingdom of Naples until his death
Edited sentence: George Castriot (, 6 May 1405 – 17 January 1468), known as Skanderbeg ( or Skënderbeu from ), was an Albanian or of mixed Albanian-Slavic origin nobleman and military commander, who served the Ottoman Empire in 1423–43, the Republic of Venice in 1443–47, and lastly the Kingdom of Naples until his death.The contemporary byzantine author Laonikos Chalkokondyles mentions his family name as Καστριώτης (Kastriotis)