Question: Isidoro Montes de Oca was among the commanders of the army of a leading revolutionary general who would later serve as what?
Sentence (from "Sierra de la Demanda (comarca)"): It is bounded on the north-east by the Montes de Oca comarca, north-west by the Alfoz de Burgos, south-east by the province of Soria, south-west by the Ribera del Duero comarca, on the east by the province of La Rioja and west by the Arlanza "comarca".
Relevant evidence: No