Griffin is only mentioned by name on the family tree, though he is mentioned in passing in regards to his mother and family. He was most likely born in the 17th century or possibly the early 18th century (according to the tree he was born in 1655). Through his mother, Griffin is the grandson of Hunter Redfern and Maeve Harman, thus making him related to the Harmans as well as the Redferns. Griffin was legally allowed by his grandfather Hunter to keep the Redfern surname and pass it on to his own children; thus, many modern Redferns are descended from him. It is not specified on the family tree whether Griffin had any siblings; however, the novels state that Garnet and Fletcher had "children" together, implying that Griffin did have siblings. The tree states he was married to Sweetbrier Curlew and that they had at least one child, Dunlin Redfern.
The name Griffin likely refers to the mythological beast named the griffin, which had the head, wings and front legs of an eagle, and the back legs and tail of a lion. It is often used as a figure in heraldry or coat-of-arms and is said to symbolise strength, nobility and intelligence. According to medieval legends, griffins mated for life and would continue alone should their mate die.
As well as being a traditional lamia name in that it refers to an animal (or specifically two kinds of animal), the name Griffin is also a rather fitting one for a man who is the vampire equivalent of royalty. It also links Griffin to his Harman relatives, seeing as a griffins are mythological animals and witches sometimes have names associated with myth and folklore.
- Due to the patriarchy of lamia, Griffin should technically be called Griffin Marsh, but was legally permitted to inherit his mother's surname of Redfern by his grandfather to continue the line.