The Bishopdales were an old and influential Newcastle family, who prospered through investment in the wool trade. Although still a young man, William must himself have been fairly affluent by January 1370, since he was then in a position to purchase all the goods and chattels of a local man named Nicholas Cook from his executors. Between 1373 and 1376 he received a number of royal licences for the export of wool and tallow from Newcastle, sometimes in partnership with his brother, John (who, like him, spent many years as a collector of customs in the port), or else with his future parliamentary colleague, Stephen Whitgray. William was himself first returned to the House of Commons in 1378, while in office as town bailiff; and at the time of his second election to Parliament, three years later, he was actually serving as mayor of Newcastle. It was during his mayoralty that the burgesses began to build the tower on the Gateshead side of the Tyne bridge which was later, in 1410, to become the cause of a protracted and bitter dispute between them and Thomas Langley, the bishop of Durham, although William did not himself live to see the consequences of his decision to improve the town’s defences.
Meanwhile, in 1379, William acquired certain estates in the north Yorkshire villages of Maunby, Newsham and Kirby Wiske from Sir Robert Charles. We know that when he died he also occupied land in the nearby township of Northallerton as well as at Brampton, Aldbrough, Whitwell, Hauxwell and other parts of Richmondshire, which he may have obtained by this date, possibly through marriage. He was certainly anxious to invest in property, for he built up substantial holdings in Newcastle, too, where he owned numerous shops and tenements. Not all his ventures were successful, however. On the death of his brother John, in 1380, for example, he failed to prevent the prior of Durham (who was related to John’s widow) from securing the reversion of property in Gateshead and Whickham, and was obliged to recognize the latter’s superior title. Not surprisingly, William was often called upon by his neighbours to witness conveyances of land in and around Newcastle.
During his years of enforced retirement William was at least able to derive some consolation from the additional revenues which had come to him through two advantageous marriages. In the autumn of 1391, he obtained the hand of the recently widowed Agnes Heselrig, who had inherited property in Swanland, Jesmond, Elswick and Newcastle from her father, Thomas Graper. Although she died a few months later, leaving most of her fortune to her son, Thomas Heselrig, William was able to secure an annuity of £20 for life from her estates in Northumberland.
