Echigo-Shibata Domain had supported the Ikei-ha since Shigekatsu MIZOGUCHI, the fourth lord of the domain, received instruction from Soetsu IKEI and from the time of the eighth lord, Naoyasu MIZOGUCHI, the domain had an 'osado' (tea master) who received instruction from the Isa family.
越後新発田藩では4代藩主溝口重雄が怡渓宗悦に茶の湯を学んで以来怡渓派で、8代藩主溝口直養の頃からは伊佐家の代々から伝授を受けた「御茶道」がいた。