Final answer:
The question seems to mix up different historical figures and events; there's no record of a Leopold capturing Bronn in 1673. Jacob Leisler led a revolt in New York in 1689 and King Leopold II exploited the Congo in the late 19th century. The leopard-skin chief is a mediator in Nuer society.
Step-by-step explanation:
It appears there may be a confusion in the question as it misattributed historical events. There is no record of someone named Leopold capturing a person named Bronn in 1673. However, we can address the historical context of two separate figures: Leisler and Leopold.
Jacob Leisler was involved in a revolt as a merchant in New York, who later assumed control and became the lieutenant governor in the late 1689 after the English government representative fled. On the other hand, King Leopold II of Belgium was notorious for his cruel exploitation of the Congo Free State in the late 19th and early 20th centuries for personal enrichment through atrocious methods including forced labour, mutilations, and murder, a setting depicted by Joseph Conrad in Heart of Darkness.
The leopard-skin chief is unrelated to the subject in question and refers to a mediator role in Nuer society. Thus, it is important to specify the correct historical context and figures when discussing such events.