Eustace fitz John construction of fortifications at Tickhill and Knaresborough in Yorkshire are also recorded in this pipe roll. This and evidence of royal writs show that Eustace and Walter Espec had justiciar responsibility for the counties of Cumberland, Northumberland, Durham, and Yorkshire, a role that involved hearing pleas and conveying instructions from central government. The death of Henry I on 1 December 1135 led to the accession of Stephen de Blois, to whom Eustace submitted. Stephen's seizure of the throne was contested by Henry I's daughter, the Empress Matilda, who had been Henry's designated heir. The "Gesta Stephani" claimed that certain "very
Henry I of England of the senior clergy in England and Normandy. Henry's only legitimate son and heir, William Adelin, drowned in the "White Ship" disaster of 1120, throwing the royal succession into doubt. Henry took a second wife, Adeliza of Louvain, in the hope of having another son, but their marriage was childless. In response to this, Henry declared his daughter, Empress Matilda, his heir and married her to Geoffrey of Anjou. The relationship between Henry and the couple became strained, and fighting broke out along the border with Anjou. Henry died on 1 December 1135 after a week of illness. Despite his