Complex sentence: The keeper of the lions in the Tower of London for James I was a Familist, as was Reginald Scot, author of the famously skeptical book 1584 "The Discoverie of Witchcraft".
Split into simpler sentences: The keeper of the lions in the Tower of London for James I was a Familist. And so was Reginald Scot, author of the famously skeptical book "The Discoverie of Witchcraft".