Which two specific breeds are frequently cited as key contributors to the foundational lineage of the Redbone Coonhound?

Answer

Scottish Deerhound and Irish Setter

Historians generally point to a foundation built upon several scent hounds, with the Scottish Deerhound and the Irish Setter being the key lineage frequently cited in the breed's ancestry.

Which two specific breeds are frequently cited as key contributors to the foundational lineage of the Redbone Coonhound?
OriginDogbreedhoundRedbone Coonhound