Haverfordwest Priory was a house of Augustinian Canons Regular on the banks of the Western Cleddau. The priory was first mentioned around 1200.
At the time of Henry VIII’s Dissolution of the Monasteries (1536–1541), it was acquired by Roger and Thomas Barlow, brothers of William Barlow, bishop of St David's.
From 1983 to 1996, the site (now under control of Cadw) was excavated and the outlines of the buildings are visible. Much architectural material of a high standard was discovered and can be seen in Haverfordwest museum. Also unearthed was a unique medieval garden with raised beds.
Kakesbeck is one of the largest medieval fortifications in Münsterland and the oldest castle in Lüdinghausen. The imposingly grown complex originated in 1120 as a motte, a small hilltop tower castle. After numerous changes of ownership, the castle was extended onto two islands, but it was not until the 14th century that it underwent significant alterations and extensions under the von Oer family. The estate experienced its heyday in the middle of the 18th century, when it covered an area of almost one square kilometre and consisted of five further outer castles in addition to the core castle, which were secured by ramparts and moats.
The well-maintained condition of the castle today is thanks to the late Wilfried Grewing, the former lord of the castle. The foundation named after him has been particularly committed to preserving the property since 2020.