Siward
... that Siward, the earl of Northumbria who defeated Macbeth in battle, was said to have been descended from a polar bear?
... that <b id="mwC_s"><a href="./Siward,_Earl_of_Northumbria" id="mwC_w" rel="mw:WikiLink" title="Siward, Earl of Northumbria">Siward</a></b>, the <a href="./Earl_of_Northumbria" id="mwC_0" rel="mw:WikiLink" title="Earl of Northumbria">earl of Northumbria</a> who defeated <a class="mw-redirect" href="./Macbeth_of_Scotland" id="mwC_4" rel="mw:WikiLink" title="Macbeth of Scotland">Macbeth</a> in battle, was said to have been descended from a <a href="./Polar_bear" id="mwC_8" rel="mw:WikiLink" title="Polar bear">polar bear</a>?