Original sentence: Runciman was a strong admirer of the Byzantine Empire.While praised by older crusade historians as a storyteller and prose stylist, he is viewed as biased against the Crusaders by some contemporary historians
Edited sentence: Runciman was a strong admirer of the Byzantine Empire, and consequently held a bias against the Crusaders for the Fourth Crusade evident in his work.While praised by older crusade historians as a storyteller and prose stylist, he is viewed as biased by some contemporary historians