In today's Claire Chats video I talk about the Ordinances by Margaret, Countess of Richmond and Derby, as to what Preparation is to be made against the Deliverance of a Queen, as also for the Christening of the Child which she shall be delivered, ordinances written by Margaret Beaufort, Henry VII's mother, in 1486 when Elizabeth of York, her daughter-in-law, was expecting her first child.
You can read Margaret's Ordinances in Joannis Lelandi antiquarii De rebus Britannicis collectanea at https://archive.org/stream/joannislelandia01heargoog#page/n238/mode/2up or http://books.google.es/books/about/Joannis_Lelandi_antiquarii_De_rebus_Brit.html..., p179-184.
I mention "raynes" in the video and I've since found out that cloth of raynes, or cloth of Rennes, was "a fine, plain weave, linen fabric produced during the Middle Ages. Originally made in France, in Rennes, Brittany, it derives its name from that town.". It tended to be used for bedding and shirts - The Fairchild Books Dictionary of Textiles by Phyllis G. Tortora and Ingrid Johnson, Bloomsbury, 2013.