Archives are the current holding institutions of sources.
| Archivo Diocesano (E-BUd) |
| Catedral Metropolitana, Archivo Capitular (E-BUa) |
| Monasterio de las Huelgas (E-BUlh) |
| Parròquia de San Esteban (E-BUse) |
Organizations are corporate entities that have been involved in the history of a source, typically as an owner, creator, or seller.
| Church of San Esteban |
| Church of San Pedro, Lerma |
| Cistercian Monastery of Santa María la Real de Las Huelgas |
| Dominican monastery of Sant Esteve |
Sources that have had their origins in this city.
| E-BUd MS s/n |
| E-BUa Frag. 61/2 |
| E-BUa Frag. 61/2 |
| E-BUlh s/n (Codex Las Huelgas) |