Kebbi Emirate
... that the Kebbi Emirate in Nigeria is one of the "seven bastard kingdoms" whose rulers trace their lineage back to a Hausa king's concubine?
... that the <b id="mwEXY"><a href="./Kebbi_Emirate" id="mwEXc" rel="mw:WikiLink" title="Kebbi Emirate">Kebbi Emirate</a></b> in <a href="./Nigeria" id="mwEXg" rel="mw:WikiLink" title="Nigeria">Nigeria</a> is one of the "<a href="./Hausa_Kingdoms#Banza_Bakwai" id="mwEXk" rel="mw:WikiLink" title="Hausa Kingdoms">seven bastard kingdoms</a>" whose rulers trace their lineage back to a <a href="./Hausa_people" id="mwEXo" rel="mw:WikiLink" title="Hausa people">Hausa</a> king's <a class="mw-redirect" href="./Concubine" id="mwEXs" rel="mw:WikiLink" title="Concubine">concubine</a>?