It is headed by descendants of the rulers of the Bornu Empire , founded before 1000 .
The Borno Emirate or Borno Sultanate is a traditional Nigerian state formed at the start of the 20th century .
Borno Emirate is headed by descendants of the rulers of the Bornu Empire , founded before 1000 .
The Borno Emirate or Borno Sultanate is a traditional Nigerian state formed at the start of the 20th century .