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 · 1310 CE – 1361 CE

Henry of Grosmont, 1st Duke of Lancaster

Also known as

Enric de Grosmont
Enrico Plantageneto
Enrique de Grosmont
Harri o'r Grysmwnt, dug 1af Caerhirfryn
Hendrik van Grosmont
Henri de Grosmont

archival plate · Henry of Grosmont, 1st Duke of Lancaster · placeholder

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

Connected to

in conflictHundred Years' War1337 CE
sibling · sibling ofEleanor of Lancaster1318 CE
died inLeicester Castle1060s CE

+ 12 further connections to entries not yet ingested

Henry of Grosmont, 1st Duke of Lancaster · Alexandria