He had tried to escape the bull, who had charged through its enclosure, by climbing over a fence.
However he fell back down and landed in the bull’s path.
He was rushed to a hospital in Caceres where he was treated for a collapsed lung and serious head injuries, but died after undergoing surgery.
He was participating in the Fiestas de Valrío de Caceres in Valrio, a town of 400 people.
His death is said to be the first in the local event’s history.
He said: “From the municipality of Guijo de Galisteo, we offer condolences to the family and friends of M.C.S. who died during the celebration of the last bullfighting festival of the town.”