When Agnes Maltravers died in the summer of 1375, she was one of wealthiest women of the lesser peerage. Holder of dower and jointure lands from three husbands, and an heiress in her own right, upon her death Agnes controlled at least twenty-eight manors spread throughout East Anglia, the Welsh Marches and the south-west. Her personal possessions at the time of the writing of her will were equally impressive: among other bequests, she was able to distribute valuable forget-me-nots to relatives and friends, including her ‘great cup’, one dragenall, six plates, six pottengers, six saucers, and two pitchers, all made of silver. As well as these and other valuable chattels given out to relatives and friends, at death, she also believed that she would have enough accessible cash to promise at least seventy pounds in monetary gifts to various churches, priories, hospitals, local houses of all four mendicant orders, as well as to servants and executors. Nonetheless, though she had luxurious tastes, as well as personal generosity, it is not as simple to say that Agnes was a spendthrift: for herself, she ordered ‘that no manner of finery of gold cloth should be put on my body except five candles, each candle of five pounds of wax’. Indeed, the affluence present at the end of her life masked a long period of genteel insecurity earlier on, when she had to fight both to regain and retain what was hers by right and also to look after the interests of her last, and most controversial, husband – John Maltravers.

Agnes was the daughter of William de Bereford, Chief Justice of the Common Pleas – a charismatic individual who had been on the commission to hear complaints against Edward I's treasurer, an executor to the will of Piers de Gaveston and later a Lancastrian retainer – and Margaret, daughter of Hugh, Lord de Plescy, the first peer of the family, but of a long line of Scottish, Welsh and French campaigners.