Fakhruddin Mubarak Shah

Fakhruddin Mubarak Shah (, ; reigned: 1338–1349) ruled an independent kingdom in areas that lie within modern-day eastern and southeastern Bangladesh, centred in Sonargaon. He is also the first Muslim ruler to conquest Chittagong, the principal port of Bengal region in 1340 AD.
History.
Fakhruddin's capital was Sonargaon. It emerged as the principal city of the region as the capital of an independent sultanate during his reign. 
His conquests of Comilla and Noakhali were followed by territorial gains to the north Sylhet and south Chittagong. His military initiatives included a successful naval action against Sultan Alauddin Ali Shah of Lakhnauti.
Shah sponsored several construction projects, including a trunk road and raised embankments, along with mosques and tombs. Ibn Batuta, after visiting his capital in 1346, described Shah as "a distinguished sovereign who loved strangers, particularly the fakirs and sufis."
The Iqlim (administrative division) of Mubarakabad is said to have been named after him.
Ikhtiyaruddin Ghazi Shah, who according to historian Jadunath Sarkar was most probably Fakhruddin's son, succeeded him and ruled the independent Sultanate from Sonargaon till 1352.