Maurice de Prendergast was a Norman

Normans

The Normans were the people who gave their name to Normandy, a region in northern France. They were descended from Norse Viking conquerors of the territory and the native population of Frankish and Gallo-Roman stock...

 knight

Knight

A knight was a member of a class of lower nobility in the High Middle Ages.By the Late Middle Ages, the rank had become associated with the ideals of chivalry, a code of conduct for the perfect courtly Christian warrior....

, fl. 1169-1174.

Maurice was a Fleming from Prendergast, Haverfordwest

Haverfordwest

Haverfordwest is the county town of Pembrokeshire, Wales and serves as the County's principal commercial and administrative centre. Haverfordwest is the most populous urban area in Pembrokeshire, with a population of 13,367 in 2001; though its community boundaries make it the second most populous...

, Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

, and participated in the Norman invasion of Ireland

Norman Invasion of Ireland

The Norman invasion of Ireland was a two-stage process, which began on 1 May 1169 when a force of loosely associated Norman knights landed near Bannow, County Wexford...

. He was one of the first members of the expedition to land in Bannow Bay in May 1169, along with Meiler FitzHenry

Meiler Fitzhenry

Meilyr FitzHenry was a Cambro-Norman nobleman and Lord Chief Justice of Ireland during the Lordship of Ireland.-Background and early life:...

 and Miles FitzDavid. He took part in the Siege of Wexford

Siege of Wexford (1169)

The siege of Wexford took place in early May 1169 and was the first major clash of the Norman invasion of Ireland. The town was besieged by a combined force of Normans under Robert Fitz-Stephen and soldiers loyal to Diarmait mac Murchadha...

.

F.X. Martin in the "Expugnatio" states that "the first edition of the Expugnatio has no reference to the arrival of Maurice de Prendergast but the later edition include the information that Maurice de Prendergast came the following day, was a valiant soldier from Rhos

Rhos, Neath Port Talbot

Rhos is a village in the Swansea Valley, located between Neath and Pontardawe, in Neath Port Talbot county borough, South Wales.-History:Originally part of the Cilybebyll estate, the Primrose Colliery was developed from the mid-1800's, close to the village. On 13 October 1858, when owned by Morgan...

 in South Wales, embarked at Milford

Milford Haven

Milford Haven is a town and community in Pembrokeshire, Wales. It is situated on the north side of the Milford Haven Waterway, a natural harbour used as a port since the Middle Ages. The town was founded in 1790 on the north side of the Waterway, from which it takes its name...

 with ten men-at-arms

Man-at-arms

Man-at-arms was a term used from the High Medieval to Renaissance periods to describe a soldier, almost always a professional warrior in the sense of being well-trained in the use of arms, who served as a fully armoured heavy cavalryman...

 and a large body of archers

Archery

Archery is the art, practice, or skill of propelling arrows with the use of a bow, from Latin arcus. Archery has historically been used for hunting and combat; in modern times, however, its main use is that of a recreational activity...

in two ships, and that he also landed at Bannow."