I want to know the answer to the following question:
What member of the Fujiwara attempted to rebel in the mid-twelfth century?
All the background I'm provided with is that "Fujiwara no Yorinaga sided with the retired emperor in a violent battle in 1156 against the heir apparent, who was supported by the Taira and Minamoto (Hōgen Rebellion).". Is that enough to answer the question?
Answer: yes