Short answers, pulled from the story.
Manuel Godoy rose to become Prime Minister of Spain despite being born in poverty and obscurity. The nobility resented his ascent to power because he lacked their lineage, while common people grew angry at his ambitious nature and affairs with women of the court.
On the 17th of March 1808 soldiers, peasants, and members of the public stormed Aranjuez. This event marked the beginning of a new era for Spain after French forces rapidly occupied San Sebastián, Pamplona, and Barcelona.
The town sat about 50 kilometers south of Madrid where the royal family stayed during the crisis. It served as the location where mutineers assaulted Godoy's quarters and captured him immediately.
Charles IV abdicated on the 19th of March 1808 after being pressured by the mutineers who demanded his dismissal of Godoy from his position. His son Ferdinand VII succeeded him as king following the chaos that unfolded within the span of two days.
In 1808 Napoleon invited both rulers to Bayonne under false pretenses before forcing them to renounce their thrones completely. He then granted the crown to his brother Joseph Bonaparte instead in an episode known as the Abdications of Bayonne.