Prince Boris Michael I of Bulgaria
Boris Michael was born about 0848.  He died on May 2nd, 0907.

 Marija of Bulgaria
Marija was born about 0882 in Preslav, Kolarovgrad, Bulgaria.

 Czar Simeon ("the Great") of Bulgaria
Simeon, known as "the Great", was born in 0865.  He died at the age of 62 on May 27th, 0927.

 Count Nikola Kumet of West Bulgaria
Nikola was born about 0906.  He died in 0971.