https://archaeologyinbulgaria.com/2019/06/02/archaeologists-to-seek-grave-of-first-roman-emperor-to-die-in-battle-trajan-decius-in-251-battle-of-abritus-near-bulgarias-razgrad/
Archaeologists to Seek Grave of First Roman Emperor to Die in Battle, Trajan Decius in 251 Battle of Abritus, near Bulgaria’s Razgrad