The Tada clan, as founded by Tsunezane TADA in the early Kamakura period, existed in Yamato Province (today's Nara Prefecture) as local samurai, and this clan, which is said to have comprised descendants of MINAMOTO no Mitsunaka, maintained a foothold at Sahiyama-jo Castle for generations; however, in some historical sources there are depictions that can be taken to mean that this lineage had nothing to do with the Tada clan mentioned above, so the detail of this lineage is unclear.
鎌倉時代初期の多田経実に始まり大和国の国人（衆徒）として存続した多田氏は源満仲の後裔と伝え代々佐比山城に拠ったが、別族とも取れる記述が見られるなど系譜が明確でない。