Of what heresy did William of Ockham accuse the Church?

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William of Ockham accused the Church of rejecting the doctrine of evangelical poverty, which held that the Church and its clergy should not accumulate wealth. This led to a conflict with Pope John XXII, who claimed that the Church had the right to hold property and rejected the idea of absolute poverty for the clergy. Ockham's beliefs were considered heretical, and he was excommunicated from the Church.

Of What Heresy Did William of Ockham Accuse the Church