Bred by Sigi Siller at Om El Arab from the Straight Egyptian Shaker El Masri and the Spanish mare Estopa, the cross that founded the Egyptian and Spanish blend used worldwide. Spent his final years in Argentina and died in 2000.
Source: https://www.thearabianmagazine.com/the-next-generation-om-el-sinon
Send the mare details and I put you in front of the stud.