He was born at Bodelwyddan, the son of Sir John Williams, 1st Baronet and took by royal licence on 12 May 1842 the name of Hay before that of Williams.
[4] Sir John is responsible for the renovation work at Bodelwyddan Castle in the mid-19th century which resulted in the house which stands on the site today.
[6] One of their children was Margaret Maria, later the wife of Sir Edmund Hope Verney.
He was succeeded by his brother, Sir Hugh Williams, 3rd Baronet.
This Welsh biographical article is a stub.