大理
(?
1333年～?
1344年)
段光，段隆之子，是蒙古辖下的第九位大理总管，同时元朝也授他为承务郞、蒙化州知州，时值蕃兵作乱，
段光以大将高蓬于河尾关击破蕃兵，战况凄惨，史言“河水尽赤，为之不流”，战胜之后自赋《凯旋诗》纪其事。
1334年，
段光与蒙古封立的梁王因辖界划分问题起干戈，
段光遣遣张希矫、杨生、张连诸将率兵攻梁王，不幸兵败，死伤惨重。1343年，梁王攻击大理，
段光自督兵与战于昆弥山，将梁王击败，最终双方同意以罗那关(牟定西)为界，派兵镇守，各自分地而治，梁王领北、段氏领南。
但双方暗中矛盾依然不断，梁王因收买段氏大将高蓬不成，反遣人将他刺杀，可见段氏与梁王仍然暗地争斗。1344年
段光卒，由其弟段功即位。
Section of light, Duan Long, son of Mongolia's ninth Dali Explorer, and also granted him the Yuan Cheng service Lang, Mongolia to know the state of the state, a time when group Soldier rebellion, high pont segment of light in general break in the river off the end of group Soldier, fighting and miserable, made history, "Red River to do, whom do not flow," since after the defeat Fu "Triumph poem" discipline such incident.