John Lothrop Motley,
The Rise of the Dutch Republic…
“ Margaret would be a hostage for the fidelity of the Duke, who had, moreover, given his eldest son to Philip to be educated in his service.She was about thirty-seven years of age when she arrived in the Netherlands, with the reputation of possessing high talents, and a proud and energetic character. She was an enthusiastic Catholic, and had sat at the feet of Loyola, who had been her confessor and spiritual guide. She felt a greater horror for heretics than for any other species of malefactors, and looked up to her father's bloody edicts as if they had been special revelations from on high. ”
