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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.

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Alexandria · MMXXVIExplicit colophon · 2026

Person · 1240 CE

John I Doukas of Thessaly

Also known as

Giovanni I Ducas
Ivan I Duka
Ivan I. Duka
Jan I Angelos
Jan I. Dukas
Jan I. Thesálský

archival plate · John I Doukas of Thessaly · placeholder

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

Connected to

sibling · sibling ofJohn Doukas12th c. CE
father · child ofMichael II Komnenos Doukas1205 CE

+ 10 further connections to entries not yet ingested

John I Doukas of Thessaly · Alexandria