regalian right
... that in medieval England the regalian right was an important, if irregular, source of income for the kings?
... that in <a class="mw-redirect" href="./Medieval_England" id="mwEzc" rel="mw:WikiLink" title="Medieval England">medieval England</a> the <b id="mwEzg"><a class="mw-redirect" href="./Regalian_right" id="mwEzk" rel="mw:WikiLink" title="Regalian right">regalian right</a></b> was an important, if irregular, source of income for the <a class="mw-redirect" href="./Kings_of_England" id="mwEzo" rel="mw:WikiLink" title="Kings of England">kings</a>?