Sultan Al-Mu'ayyad was a prominent ruler of the Mamluk Sultanate in Egypt during the early 15th century. He reigned from 1412 to 1421 and is known for his efforts to strengthen the sultanate's power and influence in the region. His rule was marked by military campaigns and the construction of significant architectural projects, including mosques and fortifications. Al-Mu'ayyad was also a patron of the arts and culture, promoting scholarship and religious education. His reign contributed to the cultural and political stability of Egypt during a time of regional challenges, helping to maintain the legacy of the Mamluk dynasty.