In this study, we investigated the remains of an individual that were recovered during cleansing work of the Church of St Hripsime. Macroscopic and X-Ray inspections yielded pathological criteria which indicated osteomalacic origin. The findings of the study suggest that the individual who lived in the Late Medieval period may have gone through multiple episodes of vitamin D deficiency. Vitamin D deficiency as an effect of deficient exposure to sunlight (in particular, in rural individuals who lived in underground houses) and nourishment deficiency could be described as the main causes leading to osteomalacia in Armenia.