Barnwal History, Family Crest & Coats of Arms
The surname is one of the Anglo-Norman surnames that came to Ireland in the 12th century. Ireland already had an established system of hereditary surnames, often the two traditions blended together quite well, but the incoming Anglo-Normans also brought with them local surnames, such as Barnwal. Local names were taken from the names of a place or a geographical feature where the person lived, held land, or was born, some from places in Normandy, or more typically, from England. Originally, the place names were prefixed by de, which means from in French. This type of prefix was eventually either made a part of the surname if the place name began with a vowel or was eliminated entirely. The Barnwal family appears to have originally lived in either of the settlements called Barnwell in the English counties of Cambridge and Northumberland. The Gaelic form of the surname Barnwal is de Bearnabhal.
Early Origins of the Barnwal family
The surname Barnwal was first found in County Meath at Crickstown Castle. "De Bernvale, accompanied William the Conqueror to England in 1066. He came from Lower Brittany, and was allied to the dukes of that province" 
Another source is more specific: "Sir Michael de Berneval, a scion of the family founded by the Norman knight, joined the English expedition fitted out against Ireland and affected a descent upon Beerhaven in County Cork, previously to the landing of his chief, Earl Strongbow, in Leinster. Sir Michael is mentioned in the records of the Tower of London, as one of the leading captains in the enterprise; and in the reigns of Henry II. and Richard I. he was Lord, by tenure, of Beerhaven and Bantry. " 
"The Barons Trimleston, like the Viscounts Kingsland, descend from the De Bernevals of Brittany. Sir Christopher Barnewall of Crickstown, in the county of Meath, was Chief Justice of the King's Bench in Ireland in 1445-1446. After the subjection of Ireland in the time of Henry II, Michael de Berneval, who served under Strongbow, obtained large grants of land at Beerhaven, county Cork, of which the O'Sullivans had been dispossessed. Here the Bernevals flourished in great prosperity until the reign of John, when the Irish rose against them, and destroyed every member of the family but one, who happened to be in London learning the law. The latter, returning to Ireland, was settled at Drumnagh, near Dublin, where his posterity remained until the reign of James I. " 
Early History of the Barnwal family
This web page shows only a small excerpt of our Barnwal research. Another 72 words (5 lines of text) covering the years 1646, 1640, 1470, 1538, 1534, 1538, 1592, 1663, 1622, 1534, 1550, 1560, 1704, 1779, 1779, 1842, 1500, 1552, 1522, 1575, 1592 and 1663 are included under the topic Early Barnwal History in all our PDF Extended History products and printed products wherever possible.
Barnwal Spelling Variations
Since church officials and medieval scribes spelt each name as it sounded to them; as a result, a single person could accumulate many different versions of his name within official records. A close examination of the origins of the name Barnwal revealed the following spelling variations: Barnewall, Barnwall, Barnwill, Barnewill, Barnewell, Barnewelle, Barnwelle, Barnwell, Bernwell, Barneville and many more.
Early Notables of the Barnwal family (pre 1700)
Notable amongst the family up to this time was John Barnewall, 3rd Baron Trimleston (1470-1538), High Chancellor of Ireland; John Barnewall, 3rd Baron Trimlestown (1534-1538.)
Nicholas Barnewall, 1st Viscount Kingsland (1592-1663), who belonged to the family of Barnewall, or De Berneval. 
Sir Patrick Barnewall or Barnwall (d. 1622), was the eldest son of Sir Christopher Barnewall of Turvey, Gracedieu, and Fieldston, son of Sir Patrick, who in 1534...
Migration of the Barnwal family to Ireland
Some of the Barnwal family moved to Ireland, but this topic is not covered in this excerpt.
Migration of the Barnwal family
During the middle of the 19th century, Irish families often experienced extreme poverty and racial discrimination in their own homeland under English rule. Record numbers died of disease and starvation and many others, deciding against such a fate, boarded ships bound for North America. The largest influx of Irish settlers occurred with Great Potato Famine of the late 1840s. Unfortunately, many of those Irish that arrived in Canada or the United States still experienced economic and racial discrimination. Although often maligned, these Irish people were essential to the rapid development of these countries because they provided the cheap labor required for the many canals, roads, railways, and other projects required for strong national infrastructures. Eventually the Irish went on to make contributions in the less backbreaking and more intellectual arenas of commerce, education, and the arts. Research early immigration and passenger lists revealed many early immigrants bearing the name Barnwal: Nicholas Barnwel who settled in Barbados in 1679; John arrived in Philadelphia, Pennsylvania, in 1798; Robert settled there in 1831; Thomas landed in New York state in 1823..
The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.
Motto: Malo mori quam foedari
Motto Translation: I would rather die than be disgraced.