Orcobal
Chief Orc Champion of the First Age under the service of Morgoth. Orcobal was an important leader of the Orcs during the fall of Gondolin in circa 510 of the First Age. Orcobal led the assault upon Gondolin, but at the gates of the city his head was cleft by Ecthelion of the Fountain and he was thus killed.
References
The History of Middle-earth, Volume II, The Book of Lost Tales: "The Fall of Gondolin"
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