Llanerchaeron is a mansion on the River Aeron, designed and built in the 1790s by John Nash for Colonel William Lewis as a model, self-sufficient farm complex. The estate is now in the care of the National Trust. It is located near Ciliau Aeron, some 2½ miles south-east of Aberaeron. The neighboring church of St Non's--also designed by Nash--has registers of baptisms and burials dating from 1730 and marriages from 1754.
