Europe Before the 30 Year Wars

The King's Fountain Lisbon - From Wikipedia

The King's Fountain depicts a scene set around the Chafariz de El-Rei in Lisbon, the capital of the-then Kingdom of Portugal. Painted during the late 16th century, the work features images associated with the wealth and power of the burgeoning Portuguese Empire; trade goods from Japan, Goa, and various African kingdoms are seen, as are African slaves and free Africans. Jewish constables (among several other Jewish men and women) can be seen detaining a thief or drunk, and the painting notably contains a depiction of an Afro-Portuguese knight endowed with the heraldry of the Order of Santiago, sometimes identified as João de Sá Panasco. More domestically-minded work can be seen, such as boatmen unloading grain and attending to passengers, while jugglers and vendors can be seen mingling with the crowd. Several animals are also present. The painting currently is on display at the Pálacio da Bacalhôa in Azeitão.

Note the Black king or high Noble of Portugal with the cross of "The order of Santiago" on his cloak (bottom right).

https://drive.google.com/file/d/1Sax_nM2Cy9j0VpWrBMV9qwf7BFT2Agqj/view?usp=drivesdk