More to explore:
Irish peasant costume of the 15th century
Arming doublet of the 15th century -- myArmoury.com
Moy Gown | Medieval Irish Gown | 15th Century Irish Gown -- Late, but I haven't seen that way to do gores before.
12th century irish clothing
Ever wanted to know how Irish people wrote before they adopted the Roman Alphabet? This is the 'Ogham Alphabet' and its how the pre-Irish used to write. This book, the "Book of Ballymote", dates to at least 1st Century BC.
Racinets Medieval costumes - French royalty - 12th thr 14th century
14th century Irish king -More Traditional Irish Clothing
Anatomy of Armour: 15th Century Gothic -- myArmoury.com
Mittens from the 15th century, Museum of London
Castle Framed Purse, circa 15th or 16th century
15th century women's clothing - Google Search
During this time women generally didn't have a certain wedding gown, but wore their best dress. This dress is made of jacquard with "Zaddeln" at the sleeve.
Ancient "book" of Runes, Norway, c. 15th Century.