Sidi Badr, later known by his regnal name Shams ad-Dīn Muẓaffar Shāh (Persian: شمس الدین مظفر شاه, Bengali: শামসউদ্দীন মোজাফফর শাহ), was the Sultan of Bengal from 1491 to 1493.
[2] In 896 AH (1490-1491 AD), he constructed a mosque in Gangarampur, adjacent to the Dargah of Makhdum Mawlana Ata.
On 30 December 1492, his governor Khurshid Khan established a Jama Mosque near Nawabganj on the banks of the Mahananda River.
[4] On 2 July 1493, the Sultan constructed a building near the dargah of Nur Qutb Alam in Hazrat Pandua.
[5] His wazir (chief minister) Sayyid Husain led a rebellion in which he was killed.