Firuz Shah Tughlaq; 1900. Photograph: Patliputra (2022), Wikimedia Commons

Firuz Shah Tughlaq (b.1309; d.1388) was a Tughlaq dynasty ruler who reigned over the Sultanate of Delhi from 1351–88 CE. He is credited with instituting a uniform taxation system, building several canals to form an extensive irrigation network and constructing the cities of Jaunpur, Hissar, Fatehabad, Ferozepur and Firuzabad.