". . .a man of substance, employed by the Crown in the responsible position of collector of the subsidy in the Castleknock district. He inherited property, including Kindlestown, in the County Wicklow, from Sir Elias de Ashbourne (probably his father-in-law), who has been mentioned in connection with Knocklyon in the parish of Tallaght, and who appears as a witness of the transfer of the Salmon Leap property to Simon Luttrell."
"In 1349, some land and a mill at the Salmon Leap near St. Wolstan's were released to Simon Luttrell amongst others, and in little more than half a century we find Robert, son of John Luttrell, dealing with this property."
Had at least one sibling, a sister "who married one of the Plunketts".
One of the "owners of Luttrellstown" that "can be traced in unbroken succession".
". . .succeeded by his son Christopher Luttrell, who died in 1454. . . ."
from "A History of the Parish of Clonsilla", link to it is on "Ireland" page.
"This is, apparently, the very Robert whom Edmondson and others following him have chosen to describe as a younger son of Sir Hugh Luttrell of Dunster"
. . .although, "no evidence whatever is offered in support of this story."
re: claims of some genealogists to directly link Irish Luttrells to Luttrells of Dunster, Somerset, England
from A History of Dunster, "The Luttrells of Luttrellstown near Dublin", Appendix D, by H. C. Maxwell-Lyte. 1909.
"The first of the Luttrell family to be associated with Luttrellstown as per the documentary evidence was Robert Luttrell in the early fifteenth century. In 1408 Robert Luttrell is mentioned as tenant of Luttrellstown from the Tyrell family at the manor of Castleknock. William Bolthame was an under tenant of Robert at Luttrellstown by the service of 20d rent. William Bolthame was also a tenant of Robert Luttrell at Tyremoln, Barbiestown, and Fynnaghland. In about 1402 Robert Luttrell took Nicholas Whit, vicar of Carbery, to the common bench at Carlow on a plea of debt. In 1420 Robert Luttrell was one of the subsidy collectors and again in 1421 when he was assisted by John Luttrell."
Luttrell of Luttrellstown: early records by Niall C.E.J. O’Brien
Hence an account of the Castleknock demesne and the Castleknock lands from which the Lord in 1408 we have in a writ of seisin granted to Thomas Serjaunt of the Manor still drew revenue.
The lands from which revenue is derived are given as: . . . 20 acres in Tyremolyn [Timolin] under Robert Luttrell;. . . lands in Luttrelstown under Robert Luttrell; . . . one messuages and one carucate in Barbiestown [Barberstown] held by Robert Luttrell; 40 acres in Fynnaghland held by Robert Luttrell . . . .