The Novigradian Union was a non-aggression pact formed between the mages (Jan Bekker, Giambattista and Geoffrey Monck), the rulers, priests and druids prior to the establishment of the Northern Kingdoms. It emphasized the separation of magic and state. Ultimately this union split largely over differences regarding the concept of magic.
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'The Novigradian Union. Bekker, Giambattista and Monck are concluding a pact with rulers, priests and druids. A pact of non-aggression codifying the separation of magic and state.'
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— pg(s). 134 – 135, Time of Contempt (UK edition)