The exact date of its extinction is not known; it is likely that it was gradually interbred with other breeds until the genuine Southern Hound bloodline ceased to exist.

Most writers suggest that it is derived from the Talbot, which was a predominantly white, slow, deep-throated, scent hound, also of uncertain origin, though it is sometimes claimed that it came from Normandy.

[1] However, in The Dog published in 1852, William Youatt states that the Southern Hound may have existed in Britain since ancient times rather than being brought from France by the Normans.

Because of its lack of speed and deliberate nature, it was considered best used for hunting game such as hare or deer, which would eventually be exhausted by its relentless pursuit and, unlike a fox or rabbit, could not escape to the safety of a den or burrow.

[3] The Southern Hound seems to have fallen out of favour during the 18th century as the fashion for shorter hunts led to the development of the faster Foxhound.