Rumaliza

Muhammad bin Khalfan bin Khamis al-Barwani (Arabic: محمد بن خلفان بن خميس البرواني) (born c. 1855), commonly known as Rumaliza, was an Arab trader of slaves and ivory, active in Central and East Africa in the last part of the nineteenth century. He was a member of the Arabian Barwani tribe. With the help of Tippu Tip he became Sultan of Ujiji. At one time he dominated the trade of Tanganyika, before being defeated by Belgian forces under Baron Francis Dhanis in January 1894.