After St. Brigid, St. Ita  is the most famous woman saint in Ireland. Her birth of noble Christian parents, Kennfoelad, a Déise Chieftain and Necta his princess wife, is said to have taken place around 470 near Faithlegg outside Waterford.

From her baptism on she was filled with the Holy Spirit. All marveled at her childhood purity and behavior, and her abstinence on the days she had to fast. She was prudent, very generous, kind toward everyone, and gentle as well as chaste in her language. As she grew up, it quickly became apparent that she wished to devote her life to God.

There is no doubt Ita excelled in the ‘Six Gifts" of Irish womanhood the ancient Celt looked for in the well educated girl - wisdom, purity, beauty, music, sweet speech, embroidery. She refused an offer of marriage as she wanted to consecrate herself completely to Christ. Her father refused her. She went at once to an aged priest she had known from childhood and publicly made her vows which she had already formed in her heart. She left her father’s house and the pleasant places round it and set out with some companions for the Ua Conaill territory in the West of Munster, the present Co. Limerick, to a place called "Cluain Creadhail" which some interpret to mean "Meadow of Faith" and which is now called Kileedy.

Legend has it that Ita was lead to Killeedy by three heavenly lights. The first was at the top of the Galtee mountains, the second on the Mullaghareirk mountains and the third at Cluain Creadhail. Her sister Fiona also went to Killeedy with her and became a member of the community.

Also known as the Brigid of Munster, biographers often compare St. Ita to St. Brigid, but the differences are more striking than the resemblances between these two foremost women saints of the Catholic church. Brigid's life was spent in continual movement. When she had made a success of one convent settlement, she moved off to found another. Ita did just the opposite. Instead of entering one of Brigid's convents, she founded a convent in a district where there was none, at the foot of Sliabh Luachra. The place became known as Killeedy and it was here that she remained until she died.

A strongly individualistic character is glimpsed in the stories that surround her life. When she decided to settle in Killeedy, a chieftain offered her a large grant of land to support the convent. But Ita would accept only four acres, which she cultivated intensively. The convent became known as a training school for little boys, many of whom later became famous churchmen. One of these was St. Brendan, whom Bishop Saint Eric gave to Ita in fosterage when he was a year old. St. Ita kept him until he was six.

The great Navigator revisited her between his voyages and always deferred to her counsel. He once asked her what were the three things which God most detested, and she replied: 'A scowling face, obstinacy in wrong-doing, and too great a confidence in the power of money'. Brendan also asked her what three things God especially loved. She replied, "True faith in God with a pure heart, a simple life with a religious spirit, and open-handedness inspired by charity."