行長は本来は学識ある人物だったが、唐の太宗の武の七徳に基づく舞曲「七徳の舞」の内の二つの徳を忘れたことから「五徳の冠者」と渾名され、世間に嫌気がさして遁世したという説がある。

One theory has it that although Yukinaga was basically an educated person, he failed to recall two of the seven virtues described in the dance music named 'Dance of the Seven Virtues' which had followed the seven virtues of the military arts of Emperor Taiso of Tang (Tang Taizong,) thereby being scornfully nicknamed the 'Young man of the Five Virtues,' and therefore he became thoroughly tired of this world and retired to live in seclusion. - Wikipedia日英京都関連文書対訳コーパス

ちなみに、妻・ノブ（信子・隆輝、吉之助の母）の父・園田実徳は武豊・武幸四郎の曾祖父・武彦七の兄にあたるため、彼らは遠縁関係となる。

Incidentally, Sanenori SONODA, father of Torataro's wife Nobu (mother of Nobuko, Takateru and Kichinosuke), was an old brother of Hikoshichi TAKE who was a great grandfather of Yutaka TAKE and Koshiro TAKE, that is, they are distant relatives. - Wikipedia日英京都関連文書対訳コーパス

田安家徳川宗武の七男・松平定信（後の松平定信）が幼少の頃から英明を謳われ、後継と目されたが、時の権力者・老中田沼意次や、子の徳川家斉（後の家斉）を推す徳川治済（一橋家当主）らの画策で、陸奥国白河藩主・松平定邦の養子にさせられたとも言われる。

The seventh son of Munetake TOKUGAWA of the Tayasu family, Masamaru (later Sadanobu MATSUDAIRA), was famous for his intelligence since childhood and considered to be a successor, but roju Okitsugu TANUMA, an influential person in those times, and Harusada TOKUGAWA (the head of Hitotsubashi family) who backed up his son Ienari TOKUGAWA made him being adopted as a son of Sadakuni MATSUDAIRA, the lord of Shirakawa Domain in Mutsu Province. - Wikipedia日英京都関連文書対訳コーパス