Sir Thomas Mortimer (c. 1350–1403) illegitimate son of Roger Mortimer, 2nd Earl of March
Battle of Radcot Bridge
https://en.wikipedia.org/wiki/Battle_of_Radcot_Bridge
Sir Thomas Mortimer was an English soldier, statesman and judge of the late fourteenth century who served briefly as Lord Deputy of Ireland and Lord Chief Justice of Ireland. He is mainly remembered now for killing Sir Thomas Molineux, the royal commander at the Battle of Radcot Bridge, a crime which ultimately led to his conviction for treason. He fled for his life and died in exile.
In December 1387, at Radcot Bridge, the Appellants clashed with the royal army, headed by Robert de Vere and Sir Thomas Molineux, Constable of Chester Castle; de Vere was defeated and forced to flee the country. Mortimer himself killed Molineux, one of the few casualties of the fight. According to Holinshed, Molineux, who had attempted to flee, pleaded for his life, but Mortimer pulled off Molinuex's helmet and stabbed him in the head with a dagger.
During the brief rule of the Appellants, Mortimer was in high favour. He was appointed Justiciar of Ireland, but Richard, despite his temporary loss of power, somehow managed to countermand the appointment (no doubt he feared to surrender control of Ireland entirely to his enemies) and it never took effect. Despite the King's mistrust of them, Thomas and his nephew Roger, with troops, accompanied him on his Irish expedition in 1394; and when Roger was reappointed Lord Lieutenant in 1396, Thomas went to Ireland with him.
https://en.wikipedia.org/wiki/Thomas_Mortimer
Thomas Mortimer and Thomas Molineux: Radcot Bridge and the Appeal of 1397
The appeal for treason lodged against Sir Thomas Mortimer in the parliament of 1397 as well as the entire background to the event has been the subject of considerable confusion. Much of this confusion has been the result of poor communication within the historical community. The information has been available, but it has appeared in diverse places. Thus, the two most recent biographers of Richard II, Anthony Steel and Harold Hutchison, have each been puzzled by the appeal of Mortimer: “The reasons for his inclusion are not clear…”; “…a mysterious addition for which no satisfactory explanation has ever been offered.” Sir Charles Oman, however, offered an explanation over sixty years ago: “As a small supplementary addition to the appeals of the previous autumn, two noted supporters of Gloucester in 1387 were dealt with—Lord Cobham, and Sir Thomas Mortimer, who had murdered the constable of Chester at Radcot Bridge.” Oman was not quite accurate when he grouped Mortimer with Cobham. Although Sir Thomas was not included in the original bill of appeal, he was cited in the summary of the appeal and the subsequent processes of the autumn session of Richard II's last parliament; lord Cobham did not become involved until the parliament reassembled in the next year. Oman's explanation of the matter, however, is not vitiated by this error. It, therefore, deserves further investigation as a solution to the mystery of Mortimer's appeal.
