Sir John Crosby
... that Sir John Crosby's former mansion in Bishopsgate, Crosby Hall, is the "only extant example of domestic architecture built for a London merchant in the Middle Ages"?
... that <b id="mwAvo"><a href="./John_Crosby_(died_1476)" id="mwAvs" rel="mw:WikiLink" title="John Crosby (died 1476)">Sir John Crosby</a></b><span about="#mwt24" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwAvw" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> former mansion in <a href="./Bishopsgate" id="mwAv0" rel="mw:WikiLink" title="Bishopsgate">Bishopsgate</a>, <a href="./Crosby_Hall,_London" id="mwAv4" rel="mw:WikiLink" title="Crosby Hall, London">Crosby Hall</a>, is the "only extant example of domestic architecture built for a London merchant in the Middle Ages"?