Today, in the 1962 Dominican Rite Calendar, we celebrate the feast of St. Catherine of Alexandria, Virgin and Martyr. The feast is III Class, so the ordinary office is prayed according to the rubrics.
Prior to the mid-20th Century revisions of the calendar, her feast was celebrated as a Totum Duplex with an octave (December 2), and her office contained a partial set of propers (the office did not include proper antiphons for the psalms of Matins, and only included three of the original nine responsories). The antiphon at 1st Vespers for her feast in the 1909 Breviarium S.O.P. was "Hail! O Catherine, thou gem of virgins. Hail! O glorious spouse of the King of kings."
Due to the circumstances of her martyrdom, as one defending the Faith against pagans, and the fact that she is reputed to have been a philosopher, she has traditionally been referred to as one of the two "protectresses" of the Order, the other being St. Mary Magdalene. In a future post, I will give the account of their intervention in the miracle of St. Dominic at Soriano.