Simplify the following text for a Grade 10 native English-speaking person.
Original: Initially , former-Emperor Fushimi administered the court up through the time he took the tonsure as a Buddhist monk , which happened after this nengÅ ended .
Simplified: Retired former-Emperor Fushimi administered the court up through the time he took the tonsure as a Buddhist monk , which happened after this nengÅ ended .