The Mamluk Sultanate was a medieval political and military regime in Egypt and the Levant that ruled from the 13th to 16th centuries. This state was established by former slave soldiers known as Mamluks, who seized power after defeating the last Ayyubid Sultan. The Mamluk Sultanate is significant for its role in repelling Crusader advances and defending Islamic territories against Mongol invasions, showcasing the complexity of political power in the region during this era.