This paper argues that Aubrey Gwynn's attribution of the Latin treatise De tribus habitaculis animae to Patrick, bishop of Dublin (d. 1084), is based on flawed argumentation. The manuscript evidence and the early transmission of the text suggest that it should be regarded as the work of an unknown pseudo-Patrick. Stylistic features are highlighted which argue against the author ofDe tribus habitaculis animae being identified with the author of the corpus of poetry also attributed to Patrick of Dublin. The English transmission of the text, and its ascription to a sanctus Patricius episcopus,is discussed in relation to English interest in the cult of St. Patrick in the late twelfth and early thirteenth centuries.