- Hegel, Georg Wilhelm Friedrich, 1770-1831--Congresses (4)
- Philosophy--Congresses (2)
- Schelling, Friedrich Wilhelm Joseph von, 1775-1854--Congresses (2)
- Hegel, Georg Wilhelm Friedrich, 1770-1831--Homes and haunts--Germany, East--Jena--Congresses (1)
- Jena (Germany)--Intellectual life--Congresses (1)
- Kant, Immanuel, 1724-1804--Congresses (1)