Tretower () was founded as a motte and bailey castle by Sir Miles Picard (Piegard), a follower of
Bernard de Neufmarché. Probably around 1150, Picard's son, Roger Picard I, replaced the motte with a shell keep. By about 1230 a tall cylindrical keep was added to the inside of the shell keep, possibly by his great-grandson, Roger Picard II, and the space between was roofed over. At this time the earlier
bailey was walled in stone and provided with cylindrical corner towers. In the early 14th century residential buildings were constructed away from the original fortifications forming today's
Tretower Court. Over time the lords of Tretower favoured the more luxurious Court and the castle fell into disuse. ==Description of the castle==