Final answer:
The chief citizen of the island of Malta is not mentioned, but Mansa Musa was a prominent ruler of the Mali Empire, known for his wealth and pilgrimage to Mecca.
Step-by-step explanation:
The chief citizen of the island of Malta is not explicitly named in the historical texts provided. However, a notable leader from historical records of Africa and the surrounding regions is Mansa Musa, who was the ruler of the Mali Empire during the 14th century. Mansa Musa is especially remembered for his immense wealth, his pilgrimage to Mecca, and his rule over a vast and prosperous empire.
As depicted in The Catalan Atlas by Abraham Cresques, Mansa Musa was a Muslim ruler who held a gold crown and scepter, and was described as 'The black lord is named Mussa Melly, lord of the Blacks of Guineas.'In the context of African history and leaders, Mansa Musa stands out as an important figure who significantly impacted the Mali Empire and its relations with other regions, including trade and diplomatic exchanges with states like Morocco.