Avery Mauleverer was the representative of a junior branch of a family long established at Potter Newton in the West Riding of Yorkshire. In 1403 either his father or grandfather, both named John, had established an independent place among the gentry by purchasing the manor of Cusworth (in the parish of Sprotborough) near Doncaster. On the younger John’s death in 1451 this manor descended to our MP, to the apparent disinheritance of his elder brother, William.
A lawyer of means had little difficulty in recommending himself to the service of the great, and Avery duly found a place in the service of Henry Percy, earl of Northumberland. This, at least, is the best explanation for his election to Parliament, shortly before his father’s death, to represent Carlisle (a constituency with which neither he nor his family had any connexion) and it is consistent with his brief later career. The election came about in slightly irregular circumstances. In the indenture attesting the return of the Cumberland and Carlisle MPs, dated at the county court held at Carlisle on 17 Oct. 1450, the names of the borough Members – Mauleverer and the Exchequer officer, Richard Alanson* – have been written over an erasure, save for the final ‘r’ of ‘Mauleverer’. Further, the document is untidy, giving the impression of having been hurriedly compiled, and on the dorse of the writ although Alanson’s name appears in the same hand and ink as that of the county members our MP’s name has been added later in a much darker ink. One can only assume that Mauleverer was returned at the last moment and that neither he nor his colleague was the original choice of the citizens of Carlisle. The result of the elections for both county and city reflected the interests of Percy and Neville. Numbered among the county attestors were prominent retainers of both families and they returned one Percy man, Thomas Crackenthorpe*, and one Neville man, Thomas de la More*. The same influence probably explains the amended Carlisle result, with our MP representing Percy and his colleague, Neville.
The early promise of Avery’s career was not to be realized. His seniority in his Inn was acknowledged by appointment as one of its governors in 1451-2, but death meant that the honour was not to be repeated.
The desirability of Avery’s widow as a bride is clear from the terms she was able to command on her marriage to William Vavasour, a younger son of one of the leading gentry families of the West Riding. By a contract dated 18 Dec. 1455, Vavasour undertook to provide her with a jointure of lands worth £20 p.a. together with the promise of a widow’s share of goods worth 600 marks. In return she was to bring Vavasour the solid prospect of an inheritance worth 40 marks p.a. from her grandmother, together with a life interest in the manor of Cusworth, which had been settled in jointure on her first marriage.
