Simplify the following text for a Grade 9 native English-speaking person.
Original: From that point Kyoto remained merely the formal capital of the country , while the de facto capital was now Edo , the center of real political power .
Simplified: From the establishment of the Tokugawa bakufus headquarters at Edo , Kyoto remained merely the formal capital of the country . The de facto capital was now Edo , because it was the center of real political power .