Having had two very successful one-day conferences in 2017, held in conjunction with university research groups, 2018 saw the innovation of Brecknock Society and Museum Friends (BS&MF) study-days organised with different local history societies. The first of these was on Saturday 12 May, when the BS&MF combined with the Llangynidr Local History Society for a meeting in Llangynidr Village Hall. As the keynote speaker, Dr Ann Benson provided a very good account of her research on the history of the Somerset family, who became the dukes of Beaufort from 1682, and who possessed significant holdings in south-east Breconshire. She traced their connections with south Wales from the perspective of the family ownership, successively, of Raglan Castle, Troy House near Monmouth, and, finally, Llangattock Court. I, as a member of both Societies, then provided a description of the Beaufort Estate in the parish of Llangynidr, this based largely on the remarkable estate survey of 1587, and its successor of 1760. Then followed a walk through the hamlet of Cyffredyn and a visit to Worcester Cottage, the fishing lodge of the dukes of Beaufort from the 1870s until the sale of the Breconshire estates in 1916.