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In the spring of 1267 Abbot Philip of Clairvaux, visiting the Cistercian abbey of Herkenrode in the diocese of Liège, was informed of the exceptionally holy conduct of a woman living a few miles away, in the village of Spalbeek. Philip went to see her and was greatly impressed, for, as he wrote upon his return to Clairvaux,
Simons et al. (Mon,) studied this question.