Chronicle of Gregory 1452 is in Chronicle of Gregory.
1452. That year it was competent welle and pessabylle as for any rysynge a-mong our selfe, for every man was in cheryte, but sumwhat the hertys of the pepyl hyng and sorowyd for that the Duke of Glouceter was dede, and some said that the Duke of Yorke [aged 40] hadde grete wronge, but what wronge there was noo man that darste say, but some grounyd and some lowryd and hadde dysdayne of othyr, &c.