Skip to content

Search
Timeline
Map
Graph
Threads
Civilizations
Eras
Random

A living digital encyclopedia of human civilization. Begin anywhere; follow the threads.

¶ Browse

Threads
Civilizations
Eras
Timeline
Map
Graph
Random entry
About

¶ Sources & licensing

Adapted prose from Wikipedia under CC BY-SA 4.0.
1911 Encyclopædia Britannica — public domain in the United States.
Imagery via Wikimedia Commons; per-image attribution on each entry.

¶ Colophon

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 · 1239 CE – 1305 CE

John II, Duke of Brittany

Also known as

Giovanni II di Bretagna
Jan II Bretoński
Jan II van Bretagne
Jan II. Bretaňský
Jean de Bretagne
Jean de Dreux

archival plate · John II, Duke of Brittany · placeholder

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

Connected to

religionChristianity33 CE
spouse · spouse ofBeatrice of England1242 CE
child · father ofBlanche of Brittany1271 CE
child · father ofJohn of Brittany, Earl of Richmond1266 CE

+ 11 further connections to entries not yet ingested

John II, Duke of Brittany · Alexandria