The Kinoshita clan was the family home of Kodai-in, the lawful wife of Hideyoshi, and among the daimyo families, this was the only clan which maintained the TOYOTOMI no Ason as its honsei (original name) through the Edo period.
江戸時代を通じて豊臣朝臣を本姓とし続けた大名家は、秀吉の正室・高台院の実家である木下氏だけである。