Simplify the following text for a Grade 8 native English-speaking person.
Original: On 8 December 1650 he married Henriette Adelaide of Savoy , daughter of Victor Amadeus I of Savoy and his French wife Christine Marie of France , daughter of Henry IV of France and Marie de ' Medici .
Simplified: On 8 December 1650 he married Henriette Adelaide of Savoy , daughter of Victor Amadeus I of Savoy and Christine Marie of France .