Preaching of John the Baptist (Basel)
| Object type | Painting |
| Genre | Religious |
| Date | ca. 1598 |
| Dimensions | 115 x 164 cm |
| Support | Panel |
| Medium | Oil |
| Our attribution | Jan Brueghel the Elder |
| Other authorities | Ertz 2008-10, #257 Ertz 1979, #52 |
| Location | Basel, Switzerland |
| Collection | Kunstmuseum |
| Accession numbers | inv. #139 |
| Tags | Preaching, Forest, Mountain, River, Burghers, New Testament, John the Baptist, Saint |
| External resources | Kunstmuseum |
Copy in Dresden, inv. #819A (canvas, 110 x 164). Ertz 2000, p.378, attributes this to Jan the Younger but it seems at least as likely to have been made within Jan the Elder's studio contemporary with the other copies.
Although Ertz lists the painting as being executed in tempera, Bodo Brinkmann at the museum in Basel confirms that it is oil on panel. No paint samples have been taken to determine if any added tempera was used, but basically this is an oil painting.