"Soldier in later Medieval England" online database

This web site, created by Dr. Adrian Bell of the ICMA Centre and Professor Anne Curry of the University of Southampton (UK) and funded by the Arts and Humanities Research Council, catalogs all known service records for soldiers in the Hundred Years War between 1369 and 1453 CE. There are three separate databases available:

Muster Roll Database
This database contains service records culled from the UK's National Archives for soldiers actively serving in the Hundred Years War.
Protection Database
The Protection Database contains archived records of soldiers who signed the legal documents of protection or attorney to indicate an intention to serve, but who may or may not have actually served.
Garrison Database
The records in the Garrison Database focus primarily on the soldiers occupying Normandy, and are collected from both UK and French source documents.