Sultan Raziyyat-Ud-Dunya Wa Ud-Din, popularly known as Razia Sultana, was a ruler of the Delhi Sultanate in the northern part of the Indian subcontinent. She was the first female Muslim ruler of the subcontinent, and the only female Muslim ruler of Delhi.
A daughter of Mamluk Sultan Shamsuddin Iltutmish, Razia administered Delhi during 1231–1232 when her father was busy in the Gwalior campaign. According to a possibly apocryphal legend, impressed by her performance during this period, Iltutmish nominated Razia as his heir apparent after returning to Delhi. Iltutmish was succeeded by Razia's half-brother Ruknuddin Firoz Shah, whose mother Shah Turkan planned to execute her. During a rebellion against Ruknuddin, Razia instigated the general public against Shah Turkan, and ascended the throne after Ruknuddin was deposed in 1236.
Razia's ascension was challenged by a section of nobles, some of whom ultimately joined her, while the others were defeated. The Turkic nobles who supported her expected her to be a figurehead, but she increasingly asserted her power. This, combined with her appointments of non-Turkic officers to important posts, led to their resentment against her.