al-Wathiq
... that the 9th-century Abbasid caliph al-Wathiq, whose five-year reign is considered by historians to be unremarkable, was heavily fictionalized in the 18th-century Gothic fantasy novel Vathek?
... that the 9th-century <a href="./Abbasid_Caliphate" id="mwQg" rel="mw:WikiLink" title="Abbasid Caliphate">Abbasid caliph</a> <b id="mwQw"><a href="./Al-Wathiq" id="mwRA" rel="mw:WikiLink" title="Al-Wathiq">al-Wathiq</a></b>, whose five-year reign is considered by historians to be unremarkable, was heavily fictionalized in the 18th-century <a href="./Dark_fantasy" id="mwRQ" rel="mw:WikiLink" title="Dark fantasy">Gothic fantasy</a> novel <i id="mwRg"><a href="./Vathek" id="mwRw" rel="mw:WikiLink" title="Vathek">Vathek</a></i>?