Kioka 【紀岡】3 The Japanese surnames etymology dictionary.
Baekje system ※. There was a case in Osaka-fu Eastern (formerly Kawachi-kuni) who gave a surname of Fujii Ren in the year 720 (4 years of retirement). Kuzui also expressed it as "Fujii". Oosaka - fu Fujiidera - shi Fujii - ji Temple Kuzuji (Fujiidera) tells that it was founded in 725 (Kamiko 2 years). 藤井 reference.