Matsudaira Izumi-no-kami Residence松平和泉守邸millsagePresumed source of the surname of Tomoka Izumi. This is the site of the former Matsudaira Izumi-no-kami residence, now Fukagawa 1-chome, Koto Ward. Izumi-no-kami is a samurai office title meaning provincial governor of Izumi Province (present-day Izumi City, Osaka Prefecture), and it is not actually a place name. The Matsudaira Izumi-no-kami residence is also little known, so this presumed origin is of low reliability.
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