a favorite
... that a favorite of Tsar Ivan the Terrible may have killed his own father to prove his loyalty to the tsar?
... that <b id="mwAvk"><a href="./Fyodor_Basmanov" id="mwAvo" rel="mw:WikiLink" title="Fyodor Basmanov">a favorite</a></b> of Tsar <a href="./Ivan_the_Terrible" id="mwAvs" rel="mw:WikiLink" title="Ivan the Terrible">Ivan the Terrible</a> may have killed his own father to prove his loyalty to the tsar?