Original: After Philip's death in 1506, with Joanna supposedly mentally unstable, and her and Philip's son Charles I of Ghent was only six years old, Ferdinand resumed the regency, ruling through Francisco Jiménez de Cisneros, the Chancellor of the Kingdom.
Simplified: After Philips death in 1506, with Joanna mentally unstable, and her and Philips son Charles of Ghent only six years old, Ferdinand resumed the regency, ruling through Francisco Cardinal Jimenez de Cisneros, the Chancellor of the Kingdom.