Answer the following question: - issue is pribislav stefan bran - title is prince / archont / knez of serbs / serbia - caption is balkans , late 9th century - succession is prince of serbia - reign is ca . 850 -- 891 - successor is pribislav - death date is 891 - predecessor is vlastimir - house is vlastimirovic - father is vlastimir - birth date is ca . 830s - image is balkans850.png - birth place is stari ras - religion is eastern christianity Given the details above, guess who could this information be about.
Answer:
mutimir of serbia