Franci interim per inducias nacti ocium, ac simul Genuensium precibus defatigati, bellum in Afros, qui omnem oram insulasque Italiae latiocinijs infestas reddebant, suscipiunt.  Richardus quoque rex Angliae rogatus auxilium, mittit Henricum comitem Derbiensem cum electa Anglicae pubis manu ad id bellum faciendum.  Igitur Franci Anglique viribus et animis consociatis in Africam traijciunt, qui vbi littus attigere, eatenus a Barbaris descensione prohibiti sunt, quoad Anglorum sagittariorum virtute factum est, vt aditus pateret:  in terram egressi recta Tunetam vrbem regiam petunt, ac obsident.  Barbari timore affecti de pace ad eos legates mittunt, quam nostris dare placuit, vt soluta certa pecuniae summa ab omni deinceps Italiae, Galliaeque ora mamis abstinerent.  Ita peractis rebus post paucos menses, quam eo itum erat, domum repediatum est.

The same in English.

The French in the meane season hauing gotten some leasure by meanes of their truce, and being sollicited and vrged by the intreaties of the Genuois vndertooke to wage warre against the Moores, who robbed and spoyled all the coasts of Italy, and of the Ilandes adiacent.  Likewise Richard the second, king of England, being sued vnto for ayde, sent Henry the Earle of Derbie with a choice armie of English souldiers vnto the same warfare.  Wherefore the English and French, with forces and mindes vnited, sayled ouer into Africa, who when they approached vnto the shore were repelled by the Barbarians from landing, vntill such time as they had passage made them by the valour of the English archers.  Thus hauing landed their forces, they foorthwith marched vnto the royall citie of Tunis, and besieged it.  Whereat the Barbarians being dismayed, sent Ambassadours vnto our Christian Chieftaines to treat of peace, which our men graunted vnto them, vpon condition that they should pay a certaine summe of money, and that they should from thencefoorth abstaine from piracies vpon all the coasts of Italy and France.  And so hauing dispatched their businesse, within a fewe moneths after their departure they returned home.

This Historie is somewhat otherwise recorded by Froysard and Holenshed in
  manner following, pag 473.

In the thirteenth yeere of the reigne of King Richard the second, the Christians tooke in hand a iourney against the Saracens of Barbarie through sute of the Genouois, so that there went a great number of Lords, Knights, and Gentlemen of France and England, the Duke of Burbon being their Generall.  Out of England there went Iohn de Beaufort bastarde sonne to the Duke of Lancaster (as Froysard hath noted) also Sir Iohn Russell, Sir Iohn Butler, Sir Iohn Harecourt and others.  They set forwarde in the latter ende of the thirteenth yeere of the Kings reigne, and came to Genoa, where they remayned not verie long, but that the gallies and other vessels of the Genouois were ready to passe them ouer into Barbarie.  And so about midsomer in the begining of the foureteenth