Nicholas Bayntun was born in 1382 at Faulston House, in the County of Wiltshire. Deeds relating to him show his name listed as Nicholas Benton, however we see the spelling of the surname changing to Bayntun by the beginning of the 17th century.

Records show he was Lord of the Manor of Fallerston (now known as Faulston) and also of part of the Manor of Compton Chamberlayne in the next valley to the North, the Nadder. Deeds dated 12 Henry IV (1411 - perhaps Wilhelma de la Mare's will) and 9 Henry V (1422 - possibly his own will), show Nicholas de Benton in possession of lands at Compton Chamberlayne.

His marriage to Joan Roche (his second cousin), was by contract, and took place sometime in 1401. This marriage had an important effect upon the subsequent fortunes of the Bayntun family. After the death of her father, Sir John Roche a year earlier in 1400, his property was divided among his co-heiresses (his daughters). His eldest daughter, Elizabeth received the Manor of Bromham Roches, which would eventually be inherited by the Bayntun family in 1508.

The Manor of Whaddon was owned by Sir John Roche and was also passed onto Elizabeth and her sister at the time of their father's death, but eventually it fell entirely to Elizabeth. This Manor, like the Manor of Bromham, was later passed onto the Bayntun family after the death of Lord St. Amand in 1508.

The Manor of Horton and the Manor of Chittoe were others inherited by Nicholas Bayntun as laid out in the terms of Wilhelma de la Mare's will in 1411, the wife of Sir John Roche. At this time the escheator for Wiltshire was ordered to assign to Elizabeth, wife of Walter Beauchamp and daughter and co-heir of Sir John Roche, rent of 13s - 4d issuing from lands in Chittoe whereof Geoffrey Driffelde was tenant for life. Nicholas Bayntun and his wife Joan, the other Roche heiress, gave assent to this.

A deed dated 14 Henry IV (1413) witnessed by Oliver Cervington, Henry Gilbert, Thomas Meriel and Thomas Martin shows Nicholas Benton as Lord of the Manor of Fallerston.

Nicholas Bayntun died in 1422 and his wife Joan Roche survived him and was re-married in 1429 to William Whaplode M.P., of Chalfont St. Peter, Co. Buckinghamshire. At the time of her marriage she conveyed the Manor of Faulston to her son, John, and he in turn, is said to have conveyed the Manor of Week to his mother for life.

There is no record of the burial place of Nicholas Bayntun, but it is thought he and his family before him, may have been buried in a square field, known as Chapel Close, which might have been either the site of a Chapel or a field attached to the Chapel which was next to Faulston House. There are no visible signs of any graves today, unless buried beneath the ground.

When Nicholas Bayntun died he was succeeded by his eldest son and heir John Bayntun