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