Complex sentence: Before the mutiny, Charles IV's "valido", or prime minister, Manuel de Godoy, a former member of the Royal Guard, had become unpopular among both the nobles and the Spanish people.
Split into simpler sentences: Before the mutiny, there was a great deal of animosity directed towards Charles IV's "valido", or prime minister, Manuel de Godoy, a former member of the Royal Guard. Godoy was highly unpopular among both the nobles and the Spanish people.