When was Saint Ruth the Matriarch canonized?

Faith, along with her sister Hope and Charity were purportedly the daughters of St. Sophia. Tradition holds that all were martyred for their faith while still quite young sometime in the early years of the Church. They were not canonized as that process did not come into being until about 1000 years later. They were proclaimed as saints by the early Church which considered any martyr to be a saint.

St. Faith was not canonized. She was proclaimed a saint by early Christians because of her martyrdom. The canonization process did not come into existence until the 12th century. In the primitive Church, martyrs were immediately recognized as witnessing to the perfection of Christian life on earth, having shown the ultimate proof of their love for Christ by the offering of their lives. By the sacrifice of their lives for Christ, they attained Heaven in eternal glory and were indissolubly united to the Lord, the Head of the Mystical Body. In the case of St. Faith, there seems to be a question as to her very existence. Was she real or simply a character in a fictional allegory?