sultan Khalifa bin Hareb of zazibar, he ruled between 1911 - 1960
Unknown author<span style="display: none;">Unknown author</span>
before his death in 1960
<a rel="nofollow" class="external free" href="http://www.hukam.net/family.php?fam=296">http://www.hukam.net/family.php?fam=296</a> (تاريخ الحكام والسلالات الحاكمة) arabic source