The <a href="https://en.wikipedia.org/wiki/Sapienza_University_of_Rome" id="mwEQ" rel="mw:WikiLink" title="Sapienza University of Rome">Sapienza University of Rome</a> is instituted by a <a href="https://en.wikipedia.org/wiki/Papal_bull" id="mwEg" rel="mw:WikiLink" title="Papal bull">bull</a> of <a href="https://en.wikipedia.org/wiki/Pope_Boniface_VIII" id="mwEw" rel="mw:WikiLink" title="Pope Boniface VIII">Pope Boniface VIII</a>.<sup about="#mwt15" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-1"}}' id="cite_ref-1" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_20#cite_note-1" id="mwFA" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwFQ">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt12" class="citation book cs1" id="CITEREFTorgil_Magnuson2004">Torgil Magnuson (2004). <a class="external text" href="https://books.google.com/books?id=AutPAAAAMAAJ" id="mwBWw" rel="mw:ExtLink nofollow"><i id="mwBW0">Urban Transformation of Medieval Rome, 312-1420</i></a>. Swedish Institute in Rome. p.<span id="mwBW4" typeof="mw:Entity"> </span>121. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBW8" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBXA" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-91-7042-167-9" id="mwBXE" rel="mw:WikiLink" title="Special:BookSources/978-91-7042-167-9"><bdi id="mwBXI">978-91-7042-167-9</bdi></a>.</cite><span about="#mwt12" class="Z3988" id="mwBXM" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Urban+Transformation+of+Medieval+Rome%2C+312-1420&amp;rft.pages=121&amp;rft.pub=Swedish+Institute+in+Rome&amp;rft.date=2004&amp;rft.isbn=978-91-7042-167-9&amp;rft.au=Torgil+Magnuson&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DAutPAAAAMAAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+20"></span></span>