A fifteenth-century house on thirty-six acres just outside Cardiff, Pencoed House has the kind of age you can feel, Grade II listed, built in the 1400s, and carrying enough local legend that Arthur and Guinevere get a mention. The whole estate is yours alone for the day. Marry in the Old Hall under the beams, or in Cwrt Clive, the glasshouse, where the light does half the work; then spread out into the orchard, the woodland and the gardens as the evening opens up.