Most of the life of Petko Kiryakov was not unveiled by historians but by the prominent Bulgarian writer Nikolai Haitov, who wrote a novel and a script which was turned into a TV series, which became a favourite of most Bulgarians.
Bulgarians adore the TV show based on Petko Kiryakov. 
( z1 adore :ARG0 ( z2 person :mod ( z3 country :name ( z4 name :op "Bulgaria" ) ) ) :ARG1 ( z5 show :ARG3 ( z6 television ) :ARG1-of ( z7 base :ARG2 ( z8 person :name ( z9 name :op "Petko" :op "Kiryakov" ) ) ) ) )