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Hermann of Reichenau and the Queen of Heaven

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Salve Regina.

Hail, holy Queen, Mother of mercy,

Hail our life, our sweetness and our hope.



Tim Shaw

Hermann of Reichenau (1013-1054) was born to Count Wolverad II and his wife Hiltrud in Upper Swabia. He was severely disabled at birth, and had to be carried around in a specially built chair. A 1999 article tried to diagnose him based on contemporary reports.

Using the biography written by his disciple Berthold, [an] unbiased analysis of the symptoms described […] is worked out: […] Intellectual functions were unaffected. […] Muscle disease is considered possible, but motor neuron disease – either amyotrophic lateral sclerosis or spinal muscular atrophy – seems to be the most convincing diagnosis….

Because of his condition, he was nicknamed “Contractus” or “the Lame.” When he was seven years old, his parents handed him over to the cloister school of the nearby Benedictine monastery on Lake Constance, where he studied under Abbot Berno. Berno was a well-known figure at the time for, among other things, his reforms in liturgical music. Hermann became a monk in 1043 and, upon Abbot Berno’s death in 1048, became Berno’s successor as abbot.

Despite Hermann’s extreme difficulty in moving and even speaking, he was considered a devoted monk and brilliant scholar. He wrote a great deal on music, mathematics, and astronomy. As well as a treatise on the science of music, he wrote two of the best-known of the medieval liturgical songs, the Alma Redemptoris Mater (Loving Mother of the Redeemer), and the Salve Regina (Hail Holy Queen).

Among his other accomplishments, he is credited with speaking Arabic, because through his writings he made available to the Latin West many scientific discoveries that were previously only widely known in the Arab world. This knowledge of Arabic, however, is only an assumption. His biographer, Berthold, never mentions knowledge of Arabic, which would be unusual omission for such an accomplishment. The monastery was a center of learning in the area, and very likely held copies of works by Gerbert of Aurillac, who learned much from Arabic sources in Spain.

Hermann wrote two works on the astrolabe, previously unknown in Europe, and described a portable sundial. His works on mathematics used Roman numerals. Although this precluded the use of decimals, he still achieved some remarkable results. In his Epistola de quantitate mensis lunaris (Letter on measurement of lunar months), he tries to find the average length of a lunar month. In decimal notation, it is 29.530851 days. Hermann did not only not have decimal notation, he didn’t have minutes and seconds. In his time, the hour was divided into “moments” and “atoms.” He calculates the length of the lunar month to be 29 days, 12 hours, 29 moments, 348 atoms, which turns out to be exactly right….

Hermann died on 24 September 1054.

From Daily Medieval (2012)