Simplify the following text for a Grade 12 native English-speaking person.
Original: He abdicated in favor of his son , Ferdinando IV , on 21 July 1859 , but Ferdinando IV was never recognized in Tuscany , and was deposed by the provisional government on 16 August .
Simplified: He abdicated in favor of his son , Ferdinando IV , on 21 July 1859 , but Ferdinando IV was never recognized in Tuscany , and was deposed by the government on 16 August .