Complex sentence: A furious Spain offered $6,000 and 1,500 kegs of rum for his capture, and when he finally was captured, he was transported to Madrid where he was unmoved by Charles IV of Spain's attempts to make him change sides.
Split into simpler sentences: A furious Spain offered $6,000 and 1,500 kegs of rum for his capture. When he was finally captured, he was transported to Madrid where he was unmoved by King Carlos IV's attempts to make him change sides.