The castle sits on a much older Iron Age promontory fort, proving Llansteffan has been inhabited for several millennia.
The castle was built by the Normans after 1100 as part of their invasion of Wales and granted to the Marmion family before passing to the Camvilles through marriage.
[5] In 2022 a six episode television series, Teulu'r Castell (meaning 'Castle Family') was broadcast on the Welsh language channel, S4C.
The series follows businesswoman Marian Evans, her husband and two daughters,[6] after they purchased the 100-acre Plas Farm several years beforehand in a confidential deal, including ownership and responsibility for Llansteffan Castle.
[7] The Evans family renovate the farm buildings and develop the castle into a wedding venue.