As in title, is it possible to somehow restrict it, or make it require higher opinion? I've been playing as the Mazdaki count of Eshafan?(Persia Capital, no idea how it's called)on the first bookmark, and I've been checking out how the Bavandids are faring. I clicked him, saw that he was a zealous zoroastrian man, with about +15 opinion of Caliph, and yet he allowed the caliph to force heritage focus(and so, Bedouin culture and Sunni religion) on his firstborn son and only heir.
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