So, Islam had a fantastic policy for converting Christians, Jews, Zoroastrians, etc. to their faith. The Jizya tax being one example, and the fact that it was STILL often lower than what they were paying before anyway while nevertheless offering a financial incentive to convert.
So, my question. How could a medieval Christian nation that has conquered a large Muslim population encourage them - without violence - to gradually convert over the centuries. Presuming they were willing to go completely against the typical methods of their brethren, that is.
Either Orthodox or Catholic would work, though, really, it would probably be the former rather than the latter.
Same process, really. The problem is that no Christian polity ever adopted a framework for conversion as effective as the Muslim one.
The thing is, you need to have a Christian power securely in control of large Muslim populations before the age of nationalism*. This power then needs to adopt a policy which genuinely offers routes for conversion and more importantly
genuinely accepts the converts. That's bolded because it's the bit which no Christian polity before the Age of Enlightenment ever really figured out.
IOTL the only major example I can think of is Spain after the Reconquista which is an example of How Not To Do It since there, the former Jewish and Muslim
conversos were still regarded with suspicion, legally inferior and subject to persecution.
Basically the advantage Islam had was that Islamic polities, as far as I can tell, genuinely seemed to accept converts into the wider community as equals- to the extent that conversion was often
discouraged by the authorities since it meant a loss of revenue. This also removes the problem of the convert getting ostracised by his own community- under Islamic practice he is welcomed with open arms into the Muslim community whereas as I said earlier, Christian practice meant that the convert would be considered an apostate by his own former community and be regarded as a suspicious inferior by the Christian community.
It's doable- it's just that no Christian polity ever tried it properly.
*Once nationalist ideals begin to kick in you get a lot of ethnic/cultural us vs them ideas which mess things up.
@Euromellows- in a situation analagous to the Ottoman conquest of the Byzantines or the Arab conquest of Egypt the conquered populace wouldn't really have the power to enforce executions for apostasy.