<a href="https://en.wikipedia.org/wiki/Theodosius_III" id="mwKA" rel="mw:WikiLink" title="Theodosius III">Theodosius III</a> resigns the throne to the <a href="https://en.wikipedia.org/wiki/Byzantine_Empire" id="mwKQ" rel="mw:WikiLink" title="Byzantine Empire">Byzantine Empire</a> to enter the clergy allowing <a href="https://en.wikipedia.org/wiki/Leo_III_the_Isaurian" id="mwKg" rel="mw:WikiLink" title="Leo III the Isaurian">Leo III</a> to take the throne and begin the Isaurian dynasty.