Kubō
... that 14th-century shogun Ashikaga Takauji sent his son Motouji to Kamakura to consolidate his rule there, but ended up creating a rival shogunate because Motouji started calling himself Kubō?
... that 14th-century <a href="./Shogun" id="mwCbQ" rel="mw:WikiLink" title="Shogun">shogun</a> <a href="./Ashikaga_Takauji" id="mwCbU" rel="mw:WikiLink" title="Ashikaga Takauji">Ashikaga Takauji</a> <i id="mwCbY">(pictured)</i> sent his son Motouji to <a class="mw-redirect" href="./Kamakura,_Kanagawa" id="mwCbc" rel="mw:WikiLink" title="Kamakura, Kanagawa">Kamakura</a> to consolidate his rule there, but ended up creating a rival shogunate because Motouji started calling himself <b id="mwCbg"><a href="./Kantō_kubō" id="mwCbk" rel="mw:WikiLink" title="Kantō kubō">Kubō</a></b>?