The pattern itself is a creation of mine inspired by various period patterns, including a portrait of young Edward VI and the pattern from James Stewart (Earl of Moray), as pictured below.
(located in the Kunstmuseum Basel, the Basel Museum of Art, in Basel, Switzerland)
Blackwork embroidery pattern from neck ruff of James Stewart, Earl of Moray (half-brother to Mary, Queen of Scots).
http://www.geocities.ws/lynnaea_fairchild/designs.html 
The finished product:
