The typical examples of 3. included Yoritsuna UTSUNOMIYA who became the Yushi of Masamitsu OYAMA and made an alliance with him, and Hideie UKITA who became the Yushi of Hideyoshi HASHIBA (TOYOTOMI) and succeeded the reigns of the UKITA clan under his guardian.
3．の代表例としては、小山政光の猶子となって同盟を結んだ宇都宮頼綱や羽柴（豊臣）秀吉の猶子となってその後見で家督を継いだ宇喜多秀家などがあげられる。