Simplify the following text for a Grade 10 native English-speaking person.
Original: In April 1793 , her nephew , the young Duke of Chartres ( future Louis Philippe of the French ) , fled France and sought asylum with the Austrians .
Simplified: In April 1793 , her nephew , the young duc de Chartres ( future Louis-Philippe King of the French ) , fled France and sought asylum with the Austrians .