Richard FitzEustace Lord , Baron Halton CLAVERING

                   When Robert de Lacy dsp in 1193, his half sister, Albreda Lisours (thedau. of his mother, Albrida, by her 2nd husband, Eudo de Lisours), thenthe wife of Richard Fitz-Eustace, feudal baron of Halton, and constableof Chester, possessed herself of the Barony of Pontefract, and all theother lands of her deceased brother, under pretence of a grant from Henryde Lacy, her 1st husband. By Fitz-Eustace, she had a son, John, whobecoming heir to his half uncle, Robert de Lacy, assumed that surname andinherited, as John de Lacy, the Baronies of Halton and Pontefract. [SirBernard Burke, Dormant, Abeyant, Forfeited, and Extinct Peerages, Burke'sPeerage, Ltd., London, 1883, p. 310, Lacy, Earls of Lincoln]

The eldest son and heir of his father, Richard Fitz-Eustace, John alsobecame heir to his half uncle, Robert de Lacy, assumed that surname andinherited, as John de Lacy, the Baronies of Halton and Pontefract, withthe Constableship of Chester. This feudal chief, who was Lord of Flambro,Baron of Halton, and Constable of Chester, had two sons, Roger, Constableof Chester, and Robert. [John Burke, Commoners of Great Britain andIreland, Vol. I, R. Bentley, London, 1834-1838, p. 548, Constable, ofWassand]

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The surname of Constable was assumed from the office of Constable ofChester, one of the high dignities constituted by Hugh Lupus, and held bythis family soon after the Norman Conquest. Robert de Lacy, youngerbrother of Roger, Constable of Chester, and Baron of Halton, enjoyed thelordship of Flamburgh, by gift of that nobleman, and was s. by his son,Robert Constable. [John Burke, Esq. and John Bernard Burke, Esq., Extinctand Dormant Baronetcies of England, Ireland, and Scotland, 2nd Edition,Scott, Webster, and Geary, London, 1841, p. 124-5, Constable, ofEveringham]

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Richard Fitz-Eustace, Baron of Halton, and constable of Chester, m.Albreda, dau. and heir of Robert de Lizures, and half-sister of Robert deLacy, and had issue, John, who assumed the surname of Lacy, and s. hisfather as constable of Chester. [Sir Bernard Burke, Dormant and ExtinctPeerages, Burke's Peerage, Ltd., London, 1883, p. 121, Clavering, BaronsClavering]