John Rogerios
... that in 1143 the Byzantine-Norman nobleman John Rogerios plotted to usurp the throne of his brother-in-law Manuel I Komnenos, but was betrayed by his own wife?
... that in 1143 the <a class="mw-redirect" href="./Byzantine" id="mwBtc" rel="mw:WikiLink" title="Byzantine">Byzantine</a>-<a href="./Normans" id="mwBtg" rel="mw:WikiLink" title="Normans">Norman</a> nobleman <b id="mwBtk"><a href="./John_Rogerios_Dalassenos" id="mwBto" rel="mw:WikiLink" title="John Rogerios Dalassenos">John Rogerios</a></b> plotted to usurp the throne of his brother-in-law <a href="./Manuel_I_Komnenos" id="mwBts" rel="mw:WikiLink" title="Manuel I Komnenos">Manuel I Komnenos</a>, but was betrayed by his own wife?