Toki clan
Minamoto no Mitsuhira (源光衡) was the third son of Minamoto no Mitsunaga (源光長) who was killed in battle during the Genpei War. His uncle Minamoto no Mitsumoto (源光基) adopted him and he founded the Toki clan becoming Toki Mitsuhira (土岐光衡). His first son Toki Mitsuyuki (土岐光行) continued the clan but his second son Toki Mitsutoki (土岐光時) took the name Asano and became founder of the Asano clan. He resided at Asano, Toki district (Mino province) and took the name of the place.