Which great theologian and religious reformer enthusiastically preached the second crusade?

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Bernard of Clairvaux was a prominent French abbot and theologian who strongly advocated for the second crusade. He wrote multiple letters and sermons encouraging Christians to take up arms and fight against the Muslims in the Holy Land. His influential preaching helped to rally support for the crusade, although it ultimately ended in failure. Thomas Aquinas lived several centuries later, Martin Luther famously objected to the Catholic Church's teachings, and Aldous of Huxley was a writer and philosopher but not a religious figure.

Which Great Theologian and Religious Reformer Enthusiastically Preached the Second