| A Martyrology of four cities: Metz, Cologne, Dublin, Lund | | Monograph or Collective Volume | Boydell, for the Henry Bradshaw Society | 2009 |
| Eileen Gray : design and architecture 1878-1976 | Garner, Philippe | Monograph or Collective Volume | [s.n.] | 1993 |
| Father Browne's First World War | O'Donnell, Edward E., SJ | Monograph or Collective Volume | Messenger Publications | 2014 |
| Hibernia Dominicana | Burke, Thomas, O.P., bishop of Ossory, c.1709-1776 | Monograph or Collective Volume | | 1762 |
| Hibernia Dominicana : Supplementum | Burke, Thomas, O.P., bishop of Ossory, c.1709-1776 | Monograph or Collective Volume | | 1772 |
| Irland im deutschen und abendländischen Sakralraum : zugleich ein Ausblick auf St Brandan und die zweite Kolumbusreise | Schreiber, Georg von | Monograph or Collective Volume | Westdeutscher Verlag | 1956 |
| Köln und Dublin. Hirtenstab-Legende und politischer Rechtsanspruch im 12 Jahrhundert | Szövérffy, Joseph | Article in Journal | | 1960 |
| Lettres persanes | Montesquieu, Charles Louis de Secondat, Baron de la Brède et de | Monograph or Collective Volume | [s.n.] | 1721 |
| Lettres persanes. 2 pts. | Secondat, Charles de, Baron de Montesquieu | Monograph or Collective Volume | | 1730 |
| New light on the beginnings of Christ Church cathedral, Dublin | Ó Riain-Raedel, Dagmar | Article in Book | | 2019 |
| Sancta Brigida abroad : a tale of two cities | Ní Mheara, R. | Article in Journal | | 1999 |
| The DeRenzys of Tinnycross | Shortall, Lisa | Article in Journal | | 2015 |
| The spectrum of occupations and the influence of guilds and Gaffeln in medieval Dublin and Cologne | Rothaupt, Valentin | Article in Book | | 2025 |
| Twelfth-century ways of learning : from Worcester or Cologne to Glendalough | Kelly, Mary | Article in Journal | | 2011 |
| William Thomas Mulvany : ein irischer Pragmatiker und Visionär im Ruhrgebiet 1806-1885 | Schmidt-Rutsch, Olaf | Monograph or Collective Volume | Stiftung Rheinisch-Westfälisches Wirtschaftsarchiv | 2003 |