Króka-Refs saga (   ) or the Saga of Ref ('Fox') the Sly is one of the Icelanders' sagas. Written in the 14th century the saga relates the adventures of Ref Steinsson, a "coal-biter" or "male Cinderella", whose unpromising origins lead him to greatness in both combat and subterfuge.
Kroka-Refs saga relates the historic adventures of Ref Steinsson.
Nothing indicates whether the character is fictitious or historic; I gambled on sliding the word "historic" by the system.
( z1 relate :ARG1 ( z2 saga :poss ( z3 and :op ( z4 person :name ( z5 name :op "Kroka" ) ) :op ( z6 person :name ( z7 name :op "Ref" :op "Steinsson" ) ) ) ) :ARG2 ( z8 adventure :mod ( z9 history ) :poss z6 ) )