When he was adopted, Hikoemon KODA accompanied him as Denyaku (an adviser assigned directly by the shogun) and samurai who had been Nobunaga's vassals such as Taroemon OKAMOTO, Sensai SAKA, Gonemon MIYAKE, Nuinosuke SAKAGUCHI, Sanemon YAMASHITA, Kichizaemon SUEMATSU, TACHIKI and KAWAMURA came to serve Nobutaka.
養子入りに際しては幸田彦右衛門が傳役として付けられ、信長家臣から岡本太郎右衛門、坂仙斎、三宅権右衛門、坂口縫殿助、山下三右衛門、末松吉左衛門、立木、河村以下の侍が信孝付きとして付けられた。