<prompt> Translate the following text to EnglishBaada ya makundi ya Fujiwara kupigana kwa miaka mingi ili kupata udhibiti wa kiti cha enzi, waligeukia majeshi ya Taira na Minamoto mnamo 1156 ili kuanzisha vita vya miaka minne ambavyo vilitangaza mwisho wa enzi ya dhahabu ya mahakama ya Heian.  <response>: After rival Fujiwara factions had been struggling for years to gain control of the imperial throne, they turned to the Taira and Minamoto armies in 1156 to wage the four-year war that heralded the end of the golden age of the Heian court. 