Simplify the following text for a Grade 10 native English-speaking person.
Original: It has also been said that in 1462 Mehmed II , the conqueror of Constantinople , a man noted for his own psychological warfare tactics , returned to Constantinople after being sickened by the sight of 20,000 impaled corpses outside Vlad 's capital of TÃ cents rgoviÈ te .
Simplified: It has also been said that in 1462 Mehmed II , returned to Constantinople after being sickened by the sight of 20,000 impaled corpses outside of Vlad 's capital of TÃ cents rgoviÅ te .