Tadazane's younger brother, the Lord of the Mikawa-Yoshida Domain (present-day Toyohashi City, Aichi Prefecture), and Tadatomo OGASAWARA (whose descendants were lords of Karatsu Domain, Hizen Province [present-day Karatsu City, Saga Prefecture] at the time of the Meiji Restoration) invited Sohen YAMADA, one of the 'Four Heavenly Kings' (as the closest followers of the founder of the Sansenke tea ceremony, SEN no Sotan, were known), to revive the matcha ceremony, though separately from the Ogasawara-ryu.
小笠原流を名乗っていないが、上記忠真の弟で三河吉田藩（愛知県豊橋市）主小笠原忠知（その子孫は明治維新時は肥前国唐津藩主、現在の佐賀県唐津市）が、三千家の祖の父の千宗旦の宗旦四天王の山田宗偏を迎えて興された流派がある。