He was by Prince Hal x Sirrulya. Photo from Jeanne Craver
Here is the info on the Clark desert stallions: Nimr. Arab Horse Society stud book vol. III (1926) says: Foaled 1914. Imported. Brown; blaze, off fore and both hind socks white. Nimr’s sire was a Seglawi Jedran belonging to the late Abdul Hamid II., Sultan of Turkey. Yaz, his dam, was a Seglawieh Jedranieh. The original owner of the dam was Shiekh [sic] Ul Mashaeikh of the Anazeh tribe, who gave her to Hazim Bey, Governor of Baghdad. Hazim Bey took her to Constantinople, where he sold her to Sherif Ali Jaffer who gave her to Prince Mohuiddin. Owned by H.V. Musgrave Clark. Journal of the Arab Horse Society: “At the same time [as Atesh] came Nimr to the above Stud, a brown horse of the Seglawi Jedran strain, standing 15 hands, having great bone and substance. He was bred and owned by Prince Mohuiddin, son of the late Sherif of Mecca [sic], and ridden by him as a charger. He is a magnificent type of Arab, a good foal-getter and a winner of many prizes in the show ring.” Peter Upton adds that Nimr was imported c.1923 and owned by H.V.M. Clark c.1925. He also quotes Lady Wentworth: “A…