In addition, 'Kichizaemon who was the tenkaichi (Japan's No. 1) ceramic artist' who visited SEN no Shoan who was given shelter by Ujisato GAMO, a daimyo (Japanese feudal lord) in Aizu region, around 1594 according to 'Machi Nagato no kami shosoku' (町長門守消息, literally, a letter of Governor of Nagato Province called Machi) is regarded to be Sokei himself.
また文禄3年（1594年）頃と推定される「町長門守消息」より会津の大名・蒲生氏郷にかくまわれていた千少庵の元に赴いた「天下一ちゃわんやき吉左衛門」なる人物も宗慶と同一人物と推測されている。