 "Parc le Breos" was established in the 1220s CE by John de Braose (of the powerful Cambro-Norman de Braose dynasty), Marcher Lord of Gower and husband to Margaret Ferch Llywelyn, "Llywelyn Fawr's" daughter.Other than for deer husbandry, the park received an income from agistment, pannage, and from sales of wild honey, ferns and dead wood.There is evidence of rabbit warrens in the park.