Guillien History, Family Crest & Coats of Arms
The origins of the Welsh name Guillien go back to those ancient Celts known as the Britons that once occupied the hills and Moors of Wales. This old Welsh surname is from the personal name Gwilliam, which is a Welsh form of the name William.
The name was anciently found in Normandy, France where it was more often than not spelt Guillem and by the Conquest was often seen as Guillaume. 
Early Origins of the Guillien family
The surname Guillien was first found in Cardiganshire where the fist on record was David ap Gwilym, the celebrated Welsh bard. There are two thoughts as to his origin. The first claims that he was born at Bro Gynin in the parish of Llanbadarn Vawr, Cardiganshire, about 1340 and died there about 1400. He was buried in the abbey of Ystrad Flur in the same county. The second claims he was born near Llandaff, Glamorganshire in 1300, and to have died at the abbey of Talley, Carmarthenshire, in 1368. 
What is not in dispute is that his parents were Gwilym Gam, a descendant of Llywarch ab Brân, one of the fifteen tribes of North Wales, and Ardudful, sister of Llywelyn ap Gwilym Vychan of Emlyn. He took to studies in Italy and by the age of fifteen, he had returned to Wales where his satirical whit became famous.
He fell in love with Laura for whom he wrote 147 poems. In his lifetime, he is known to have written 262 poems which were collected and published in 1789. "Other poems by him have since been discovered among the manuscript collections of Welsh poetry in the Mostyn library. The British Museum possesses many manuscript copies of his poems. " 
At about the same time or perhaps earlier, John ap-Gwilym was Chancellor of St. David's in 1351. The name was also a forenames in East Cheshire. Gwilliam ap Griffith was listed as holding lands there in 1450. 
Early History of the Guillien family
This web page shows only a small excerpt of our Guillien research. Another 74 words (5 lines of text) covering the years 1351, 1565 and 1621 are included under the topic Early Guillien History in all our PDF Extended History products and printed products wherever possible.
Guillien Spelling Variations
Although there are not an extremely large number Welsh surnames, there are an inordinately large number of spelling variations of those surnames. This variety of spellings began almost immediately after the acceptance of surnames within Welsh society. As time progressed, these old Brythonic names were eventually were recorded in English. This process was problematic in that many of the highly inflected sounds of the native language of Wales could not be properly captured in English. Some families, however, did decide to modify their own names to indicate a branch loyalty within the family, a religious adherence, or even a patriotic affiliation. The name Guillien has seen various spelling variations: Gwilliam, Gwuilliam, Guilliam, Gwilliams and others.
Early Notables of the Guillien family (pre 1700)
Another 34 words (2 lines of text) are included under the topic Early Guillien Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the Guillien family
The Welsh migration to North America in the late 19th and early 20th centuries contributed greatly to its rapid development. These migrants were in search of land, work, and freedom. Those Welsh families that survived the long ocean journey were critical to the development of new industries and factories, and to the quick settlement of land. They also added to an ever-growing rich cultural heritage. A search of the immigration and passenger lists has shown a number of people bearing the name Guillien: P.G. Gwllium who settled in California in 1852; Catherin Gwillam settled in Virginia in 1663; John Gwilliam settled in Barbados in 1654; William Gwilliam settled in Virginia in the same year..