Kongō-ji
... that three Japanese emperors were imprisoned at Kongō-ji?
... that three Japanese emperors were imprisoned at <b id="mwBpA"><a href="./Kongō-ji" id="mwBpE" rel="mw:WikiLink" title="Kongō-ji"><span about="#mwt81" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"Kongō-ji"}},"i":0}}]}' id="mwBpI" typeof="mw:Transclusion">Kongō-ji</span></a></b>?