General Notes

W E Wightman, *The Lacy Family in England and Normandy, 1066-1194*,
genealogical chart following p 260.

same, p. 85:  Robert had no issue by Isabella, so that on his death on 21 August 1193, the first Lacy line came to an end."

From same, p 85-86:  "Robert seems to have been allowed to inherit the
honour as soon as his father's death became known.  He left no heirs, and, as there were no other surviving heirs of either Henry or Ilbert II, the succession devolved on the great-grandson of Henry's sister Aubrey, Roger 'Helle', constable of Chester, who took the name Lacy when he was allowed to inherit the lands.  He had to pay a relief of three thousand marks, three times the amount that Robert had paid sixteen years before. Thus the honours of Halton and Widnes became joined to those of Pontefract and Clitheroe built up by the first Lacy line, the whole forming the basis of the power of the earls of Lincoln in the next century."