John came of a family which had been established in Cambridgeshire and Hertfordshire for nigh on 300 years, being directly descended from Hardwin de Scalers, who had acquired the manors of Whaddon, Wyddial and Reed shortly after the Conquest. John’s sizeable inheritance also included six knights’ fees and the overlordship of Broadfield elsewhere in Hertfordshire, as well as the Norfolk manor of Thelveton.
Aged just 26 and with no known experience of public service behind him, Chalers secured election for Cambridgeshire to the Merciless Parliament summoned to meet on 3 Feb. 1388, but before its first session ended he died, on 27 Feb. He was buried in Whaddon church. Within a week his widow Margery, in association with Sir William Castleacre, obtained a lease of two-thirds of the Chalers estates, for which they were to pay £20 a year at the Exchequer during the minority of the heir. Margery was brought before the King’s Council in July, presumably to be reprimanded and fined for failing to obtain royal approval for her hasty marriage to Sir John Heveningham of Suffolk.
