Lament of the Holy Mother Church of Constantinople
... that the 15th-century Guillaume Dufay wrote a Lament of the Holy Mother Church of Constantinople for a political show banquet to propagate a crusade against the Ottoman Turks?
... that the 15th-century <a class="mw-redirect" href="./Guillaume_Dufay" id="mwB2M" rel="mw:WikiLink" title="Guillaume Dufay">Guillaume Dufay</a> wrote a <b id="mwB2Q"><a href="./Lamentatio_sanctae_matris_ecclesiae_Constantinopolitanae" id="mwB2U" rel="mw:WikiLink" title="Lamentatio sanctae matris ecclesiae Constantinopolitanae"><i id="mwB2Y">Lament of the Holy Mother Church of Constantinople</i></a></b> for <a href="./Feast_of_the_Pheasant" id="mwB2c" rel="mw:WikiLink" title="Feast of the Pheasant">a political show banquet</a> to propagate a <a class="mw-redirect" href="./Crusade" id="mwB2g" rel="mw:WikiLink" title="Crusade">crusade</a> against the <a href="./Ottoman_Turks" id="mwB2k" rel="mw:WikiLink" title="Ottoman Turks">Ottoman Turks</a>?