This study examines an ensemble of Romanesque churches built between the eleventh and thirteenth centuries in the region of Val d’Aran, located in the Spanish Pyrenees, following the liturgy treatises of Gemma animae by Honorius Augustodunensis and the Mitralis de Officio by Sicardus, Bishop of Cremona. A group of these churches have been oriented along an East–West axis in accordance with the equinox. The mountainous topography does not allow a setting-out by observing the solar ortho, therefore, we conclude from their precision (91.41º, ± 1.91º) that they were traced using instrumental systems inherited from Vitruvius, Hyginus Gromaticus, Gisemundus, or Gerbertus Aureliacensis.

这项研究考察了在11世纪至13世纪之间在西班牙比利牛斯山脉的Val d'Aran地区建造的罗马式教堂的合奏，遵循了Honorius Augustodunensis的Gemma animae礼仪论和Sicardus的Bitral的Mitralis de Officio教义。克雷莫纳。这些教堂中的一组已按照春分点沿东西轴线定向。多山的地形不允许通过观察太阳正交射出，因此，从它们的精度（91.41º，±1.91º）可以得出结论，它们是使用从维特鲁威，Hyginus Gromaticus，Gisemundus或Gerbertus Aureliacensis继承的仪器系统追踪到的。 。