Emperor <a href="https://en.wikipedia.org/wiki/Theodosius_II" id="mwHA" rel="mw:WikiLink" title="Theodosius II">Theodosius II</a>, age 13, yields power to his older sister <a href="https://en.wikipedia.org/wiki/Pulcheria" id="mwHQ" rel="mw:WikiLink" title="Pulcheria">Aelia Pulcheria</a>, who reigned as <a href="https://en.wikipedia.org/wiki/Regent" id="mwHg" rel="mw:WikiLink" title="Regent">regent</a> and proclaimed herself empress (<i id="mwHw"><a href="https://en.wikipedia.org/wiki/List_of_Augustae" id="mwIA" rel="mw:WikiLink" title="List of Augustae">Augusta</a></i>) of the <a href="https://en.wikipedia.org/wiki/Byzantine_Empire" id="mwIQ" rel="mw:WikiLink" title="Byzantine Empire">Eastern Roman Empire</a>.