| Abraham Ortelius - Jacob Cool - 1595-1-4 | Correspondence | George | 19 September 2023 15:32:19 |
| Abraham Ortelius - Jacob Cool - 1595-02-02 | Correspondence | George | 19 September 2023 11:42:49 |
| Abraham Ortelius - Jacob Cool - 1596-3-23 | Correspondence | George | 19 September 2023 15:34:04 |
| Abraham Ortelius - Jacob Cool - 1597-04-03 | Correspondence | George | 19 September 2023 15:38:23 |
| Abraham Ortelius - Jacob Cool - 1598-06-03 | Correspondence | George | 19 September 2023 15:42:05 |
| Abraham Ortelius - Joost Lips - 1592 | Correspondence | FDeCallatay | 12 September 2019 10:34:56 |
| Abraham Ortelius - William Camden - 1588-11-25 | Correspondence | George | 19 September 2023 16:20:16 |
 | | FDeCallatay | 11 October 2020 16:04:13 |
 | | George | 25 September 2023 12:10:54 |
| Abraham van Goorle - Jacob Cool - 1601-4-13 | Correspondence | George | 19 September 2023 13:29:04 |
 | | FDeCallatay | 7 August 2019 12:23:39 |
 | | Bkrabina | 4 November 2022 15:55:33 |
| Acciarino 2016 | Literature | Tomassoni | 21 March 2022 21:59:06 |
 | | FDeCallatay | 18 March 2020 21:13:28 |
| Claudio Achillini | Persons | FDeCallatay | 23 August 2019 15:53:21 |
| Achillini, Claudio - Poem | Manuscripts of Unpublished Works | FDeCallatay | 26 August 2019 12:03:25 |
| Ackermann 1992 | Literature | FDeCallatay | 30 September 2020 12:12:37 |
| Hendrik d'Acquet | Persons | FDeCallatay | 2 September 2019 16:35:07 |
| Jacob Acéré de Marmande | Persons
Pages with broken file links | FDeCallatay | 5 May 2020 06:17:17 |
 | | Bkrabina | 14 October 2022 17:21:02 |
 | | FDeCallatay | 7 January 2020 14:16:30 |
| Robert Adam | Persons
Pages with broken file links | George | 19 January 2024 11:05:49 |
| Francesco Raimondo Adami | Persons
Pages with broken file links | Tomassoni | 22 October 2023 13:01:54 |
| Addenda ad Eckhelii Doctrinam Numorum Veterum ex eiusdem autographo postumo | | DWilliams | 5 October 2020 08:22:04 |
| Addison 1726 | Literature | Tomassoni | 17 December 2021 10:12:02 |
| Addison 1727 | Literature | Tomassoni | 17 December 2021 10:19:53 |
| Addison 1795 | Literature | Tomassoni | 17 December 2021 10:31:46 |
| Joseph Addison | Persons | DWilliams | 18 October 2022 11:21:01 |
 | | FDeCallatay | 7 February 2020 15:13:43 |
 | | FDeCallatay | 7 February 2020 15:13:30 |
| Addy 1987-1997 | Literature | George | 8 August 2023 09:50:48 |
| Adelheid Amalia von Schmettau - François Hemsterhuis - 1781-9-12 | Correspondence | FDeCallatay | 27 May 2020 19:05:43 |
| Adelheid Amalia von Schmettau - François Hemsterhuis - 1781-9-28 | Correspondence | FDeCallatay | 27 May 2020 19:05:14 |
| Adelheid Amalia von Schmettau - François Hemsterhuis - 1781-10-5 | Correspondence | FDeCallatay | 27 May 2020 19:04:53 |
| Adelheid Amalia von Schmettau - François Hemsterhuis - 1783-3-14 | Correspondence | FDeCallatay | 27 May 2020 19:22:58 |
| Adelheid Amalia von Schmettau - François Hemsterhuis - 1785-2-15 | Correspondence | FDeCallatay | 27 May 2020 19:38:31 |
 | | FDeCallatay | 26 May 2020 04:52:44 |
| Jacob Georg Christian Adler | Persons
Pages with broken file links | DWilliams | 4 February 2022 00:47:48 |
| Adolf Occo - Abraham Ortelius - 1582-11-5 | Correspondence | George | 27 July 2023 09:14:33 |
| Adolf Occo - Abraham Ortelius - 1598-5-4 | Correspondence | George | 19 September 2023 12:37:23 |
| Adolf Occo - Jacob Cool - 1599-2-6 | Correspondence | George | 20 September 2023 10:28:09 |
 | | FDeCallatay | 4 August 2019 21:01:10 |
 | | FDeCallatay | 6 August 2019 21:02:07 |
 | | Tomassoni | 9 March 2022 22:25:06 |
| Adriaan Reland - Antoine Galland - 1706-11-28 | Correspondence | FDeCallatay | 10 January 2022 22:33:48 |
 | | FDeCallatay | 30 August 2019 19:07:34 |
 | | Tomassoni | 26 January 2022 00:44:48 |
| Agard 1611 | Literature | Tomassoni | 28 February 2022 01:16:31 |
| Antoine Agard | Persons
Pages with broken file links | Tomassoni | 22 March 2022 17:45:01 |
| Aghion 2002 | Literature | FDeCallatay | 30 September 2020 12:15:28 |
| Agnethler 1746 | Literature | Tomassoni | 21 March 2022 21:59:55 |
| Agnethler 1750 | Literature | Tomassoni | 21 March 2022 22:00:58 |
| Agnethler 1750-1752 | Literature | Bkrabina | 2 March 2022 19:40:50 |
| Michael Gottlieb Agnethler | Persons
Pages with broken file links | FDeCallatay | 7 February 2020 14:59:11 |
| Agostini 1649 | Literature | Tomassoni | 22 March 2022 17:15:14 |
| Agostini 1657 | Literature | Tomassoni | 28 February 2022 01:21:40 |
| Leonardo Agostini | Persons | FDeCallatay | 11 April 2020 21:36:13 |
| Agostino Monanni - Leopoldo de' Medici - 1664-2-2 | Correspondence | Tomassoni | 24 August 2023 14:06:58 |
| Agostino Monanni - Leopoldo de' Medici - 1671-6-17 | Correspondence | FDeCallatay | 9 May 2020 20:11:07 |
| Agostino Mosti - Abraham Ortelius - 1583-9-21 | Correspondence | FDeCallatay | 11 September 2019 20:14:40 |
| Agricola 1533 | Literature | Tomassoni | 28 February 2022 01:30:11 |
| Agricola 1550 | Literature | Tomassoni | 17 December 2021 16:05:12 |
| Agricola 1550 by Ulisse Aldrovandi | Annotated Printed Books | FDeCallatay | 1 September 2021 09:24:57 |
 | | FDeCallatay | 28 February 2020 20:54:02 |
| Georgius Agricola | Persons | DWilliams | 18 October 2022 11:21:49 |
 | | FDeCallatay | 28 February 2020 20:55:29 |
| Aguilar 1999 | Literature | Tomassoni | 22 March 2022 17:15:50 |
| Agustin - Orsini 1592 | Literature | Tomassoni | 22 March 2022 17:16:46 |
| Agustin 1587 | Literature | Tomassoni | 17 December 2021 16:07:53 |
| Agustin 1592 | Literature | Tomassoni | 22 March 2022 17:17:22 |
| Agustin 1592 by Hillebrant Jacobsz van Wouw | Copies or Translations of Printed Books | FDeCallatay | 2 June 2020 07:45:01 |
 | | Bkrabina | 5 September 2022 22:17:37 |
 | | Bkrabina | 5 September 2022 20:49:51 |
| Agustin 1617 | Literature | Cano | 25 April 2023 07:23:22 |
| Agustin 1744 | Literature | Tomassoni | 22 March 2022 17:18:19 |
| Agustin 1772 | Literature | Tomassoni | 17 December 2021 16:51:02 |
| Agustin 1774 | Literature | Tomassoni | 17 December 2021 17:02:24 |
| Antonio Agustin | Persons | DWilliams | 18 October 2022 11:19:38 |
| Agustin, Antonio - Antonii Augustini Musei Antiquiora Numismata | Catalogues of Numismatic Collections | FDeCallatay | 30 August 2019 05:04:10 |
| Agustin, Antonio - Suma de les monedes trobades a la llibreria de l'archebisbe de Tarragona Antoni Agustin | Catalogues of Numismatic Collections | FDeCallatay | 1 December 2019 15:57:52 |
 | | FDeCallatay | 26 August 2019 15:19:40 |
 | | FDeCallatay | 26 August 2019 15:20:42 |
 | | FDeCallatay | 26 August 2019 15:19:10 |
| Robert Ainslie | Persons
Pages with broken file links | FDeCallatay | 27 August 2019 20:45:35 |
| Ainsworth 1719-1720 | Literature | Tomassoni | 22 March 2022 17:19:09 |
| Ainsworth 1719-1720 by Thomas Birch | Annotated Printed Books | George | 9 January 2024 11:17:24 |
| Robert Ainsworth | Persons
Pages with broken file links | FDeCallatay | 18 January 2020 08:34:37 |
| François d'Aix de La Chaise | Persons
Pages with broken file links | FDeCallatay | 8 April 2020 19:35:25 |
| Aix-en-Provence, Bibliothèque de Méjanes | Institutions | DWilliams | 3 July 2019 17:22:12 |
| Alava, Seminario Diocesano de Vitoria | Institutions | FDeCallatay | 17 June 2020 21:37:29 |
| Alessandro Albani | Persons
Pages with broken file links | DWilliams | 18 October 2022 11:35:46 |
 | | FDeCallatay | 26 August 2019 15:32:41 |
 | | FDeCallatay | 26 August 2019 15:32:56 |
| Albani, Alessandro - Observations sur les commentaire de M. l’abbé Vénuti sur les médailles de cardinal Albani | Catalogues of Numismatic Collections | DWilliams | 5 October 2020 08:49:48 |
 | | FDeCallatay | 10 October 2020 18:15:19 |
 | | FDeCallatay | 26 August 2019 15:33:40 |
 | | FDeCallatay | 26 August 2019 15:33:17 |
 | | FDeCallatay | 26 August 2019 15:31:58 |
| Carlo Albani | Persons | FDeCallatay | 12 July 2019 07:39:03 |
 | | FDeCallatay | 5 April 2020 09:05:10 |
