statement of the doctrine of transubstantiation can be found in the homily by Thomas in the version as found in BNF 1143 (a musical manuscript devoted entirely to the office). Scholars have also noted the movement from doctrinal to biblical versions in the Office texts. And, stylistically, Juliana's version sets known texts to new music; the Aquinas version rearranges biblical quotations to known chants, thus creating contrafacta. In 1264 Pope Urban IV issued the papal bull Transiturus in which the Feast of Corpus Christi, i.e., the feast of the Body of Christ was declared a feast throughout the entire Latin Rite. This was the very first papally sanctioned universal feast in the history of the Latin Rite. The feast is traditionally celebrated on the Thursday after Trinity Sunday, but in the liturgical reforms of 1969, under Pope Paul VI, the bishops of every nation have the option to transfer it to the following Sunday. Juliana was canonized in 1869 by Pope Pius IX and further celebrated by Pope John Paul II, who wrote a letter mentioning her on the 750th anniversary of the Feast of Corpus Christi. Her feast day is the 6 April. See also Christian mysticism Guelphs and Ghibellines References 1190s births 1258 deaths People from Fléron 13th-century Christian nuns Premonstratensian nuns Belgian Roman Catholic saints 13th-century Christian saints 13th-century Christian mystics 13th-century musicians 13th-century women musicians Roman Catholic mystics Belgian women musicians Christian female saints of the Middle Ages