SCA - Patterns
Viking dress - pattern and instruction
A great article on the Viking "Apron Dress"
Viking women: Clothing: Aprondress (smokkr)
Let's talk about fitted sleeves.
Let's Talk About Sleeves | The Compleatly Dressed Anachronist
Ook wel Hangerock (hanging skirt), apron-dress, and Trägerrock (pinafore) - however you call it, this is a 16 page pdf with multiple versions and ideas of how it was made
How to Make Dorothea's 1515 Pleatwork Hemd Smock with Cord Tufts and Tassels: Pattern and Tutorial Part 1
Russian Novgorod reconstruction garb, with sources
Cotehardies from Greenland Gowns - Constructing the Garment - Dame Helen's Library. A series of pages going through the steps of making a cotehardie.