(Q28715255)
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Wikipedia(4 entries)
- arwiki عمر بن عبيد الله بن معمر
- enwiki Umar ibn Ubayd Allah ibn Ma'mar
- idwiki Umar bin Ubaidullah bin Ma'mar
- trwiki Ömer bin Ubeydullah bin Ma'mer
7th-century Arab tribal leader and commander of the Islamic caliphate