Conwy Castle In the town of Conwy, Aberconwy & Colwyn, north Wales Caer ysblennydd Edward I a gwbwl haewyd yn 1287 (Edward I's magnificent fortress completed in 1287) Location map link for Conwy Castle Photos above Copyright 1994 by Jeffrey L. Thomas. Select this link to hear the song Mwynen Gwynedd. Midi sound file by Barry Taylor Follow this link to view a layout of the castle (77k jpg) ...