History of Bulgaria
Life
Chronologies give different reign dates: c. 721–737 or c. 725–740. Little is known about his life.
People nearby
Later artistic depiction · Nikolai Pavlovich (1835–1894) · Public domain · Wikimedia Commons 
Later artistic depiction · Unknown author · Public domain · Wikimedia Commons 
Later artistic depiction · Original: Constantine Manasses · Public domain · Wikimedia Commons 
Later artistic depiction · John Skylitzes · Public domain · Wikimedia Commons 
Traditional identification: Boris I · Constantine of Preslav · Public domain · Wikimedia Commons 
Later artistic depiction · Anonymous medieval illuminator; reproduction uploaded by Кардам · Public domain · Wikimedia Commons