Such A Reputation
Henry, Duke of Lancaster, called the “Father of Soldiers,” was England’s most distinguished warrior, who had not missed a battle in his 45 years. He was a veteran of the Scottish wars, of Sluys, of Calais and all the campaigns in France, and when his country was quiescent he rode forth in knightly tradition to carry his sword elsewhere. He had joined the King of Castile in a crusade against the Moors of Algeciras and journeyed to Prussia to join the Teutonic Knights in one of their annual “crusades” to extend Christianity over the lands of Lithuanian heathen. In 1352 [C.E.], while the truce still held between England and France, he was the star of a remarkable event in Paris. On returning from a season in Prussia, he had quarreled with Duke Otto of Brunswick and accepted his challenge to combat, which was arranged under French auspices. Given a safe-conduct, escorted by a noble company to Paris, magnificently entertained by King Jean, the Duke of Lancaster rode into the lists before a splendid audience of French nobility; but his mere reputation proved too much for his opponent. Otto of Brunswick trembled so violently on his warhorse that he could not put on his helmet or wield his spear and had to be removed by his friends and retract his challenge.
— A Distant Mirror, pp. 146-47