Prior to version 1.8, Lagrange's font library was harcoded and all the fonts were bundled together with the binaries. The number of fonts was limited by needing to keep the packages suitably small for distribution.
These fonts were bundled with Lagrange v1.7 and earlier:
If the whole set isn't needed, these can be installed separately:
The original Gemtext version of this page can be accessed with a Gemini client: gemini://skyjake.fi/fonts/classic/