Simplify the following text for a Grade 8 native English-speaking person.
Original: Victor Emmanuel I ( Vittorio Emanuele ; 24 July 1759 -- 10 January 1824 ) was King of Sardinia from 1802 to 1821 .
Simplified: Victor Emmanuel I ( 24 July 1759 -- 10 January 1824 ) was the Duke of Savoy and King of Sardinia from 1802 to 1821 .