Lord Thistlewick of Flanders is the father to Sir Nederick, Lady Nedderly, Lady Nedebel and Nedmond Flanders. He was married to Lady Nedwina Dredful. He is also the Founding Father of the Flanders Family, and Nedward Flanders's paternal great-great grandfather.
He is possibly an ancestor of Lord Thistlewick Flanders, due to the naming similarities.