The Romani people have lived throughout Europe and the Americas for centuries. As they are a nomadic culture, you might not expect the Roma to have a centralized leadership. But until the 1930s, they actually had a succession of kings, known as “gypsy kings” before the derogatory term was officially dropped.
Not unlike most other monarchs, the king of the Roma acted as the liaison between the Romani people in a certain country or region and the gadje, or non-Roma. In many countries, including Poland, the kings would be recognized by the state as the official spokesperson for the Romani people and the person in charge of collecting taxes. The coronations were performed by the church and the prime minister would usually be present.
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