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Adapted prose from Wikipedia under CC BY-SA 4.0.
1911 Encyclopædia Britannica — public domain in the United States.
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Set in EB Garamond and JetBrains Mono. Built on Next.js 16 + Postgres 17 with pgvector + Drizzle ORM, deployed to Vercel atop a Neon Postgres branch.

Source at github.com/chloeilabs/alexandria.

Alexandria · MMXXVIExplicit colophon · 2026

Person · 1245 CE – 1290 CE

Johann von Sponheim

Also known as

Jan I van Sponheim-Kreuznach
Jan I. ze Sponheimu
Johan 01 av Sponheim-Kreuznach
Johan I av Sponheim-Kreuznach
Johann I Graf von Sponheim-Kreuznach
Johann I Graf von Sponheim-Kreuznach

archival plate · Johann von Sponheim · placeholder

This entry is a stub. The Library is awakening — a longer account is being written.

Connected to

father · child ofSimon I, Count of Sponheim-Kreuznach1210 CE

+ 6 further connections to entries not yet ingested

Johann von Sponheim · Alexandria