"SALUSBURY, SALISBURY, SALESBURY family, of Lleweni and Bachygraig. There is considerable uncertainty about the origin of the Salusburies. Leaving aside both a legendary descent from the 11th cent. ducal house of Bavaria (with an assumed derivation of Salusbury from Salzburg ) and a less high-flown but equally hypothetical derivation from Salesbury in Lancashire, there remains some evidence, slight but not easily disposed of, that the family had a Herefordshire origin. They were established at Lleweni in the Vale of Clwyd before 1334, though no Salusbury appears among the original burgesses of near-by Denbigh , listed in its original charter (before 1290 ). The belief that a ‘Sir’ John Salusbury founded the house of White Friars at Denbigh and was buried there in 1289 is based upon several misconceptions, and has no foundation in fact.
In the course of time the Salusburies became entirely Welsh, and had meanwhile built up a considerable estate centred upon Lleweni . The five sons of Thomas Salusbury , killed at the battle of Barnet (1471) were all men of substance. FFOWC SALUSBURY, his second son, had become dean of S. Asaph before 1505 and held the appointment until his death in 1543 . Three others had acquired estates of their own: Henry Salusbury at Llanrhaeadr , Robert Salusbury at Plas Isa, Llanrwst, and John Salusbury at Bachymbyd. The eldest son and heir was THOMAS SALUSBURY (d. 1505 ), who fought at the battle of Blackheath (1497) and was, in consequence, knighted by Henry VII — the first of a stream of honours and officers which the family earned by their support of the Tudor dynasty...." 1