From the Dering Roll (c. 1270-1300)
Blazon: Gules a lion rampant or, a label of three points azure
Later individuals in the de Burghersh family, including Herbert’s grandson, bear an almost identical coat, with a lion rampant double-queued. I’m not sure whether this depiction is incorrect or if the arms were later modified. The label also implies that Herbert was a younger son, but I cannot confirm this.