if the same John and Henry perchance die in the meantime, by their heirs and executors, may take and arrest the bodies, ships, vessels, goods, wares and merchandise of any subjects soever of the aforesaid duke, wheresoever they may be found within our realms, lordships, lands, powers and territories, as well on this side as beyond the sea, by land, sea or water, within liberties and without, to the value of the said 2036 marks, and lawfully and with impunity detain the same until full satisfaction shall have been made to them of that sum and of the whole and entire tackling of the ship aforesaid and of the victuals aforesaid or of the true value of the same, and of the damages, costs, outlays and expenses which they have reasonably sustained and will sustain on our behalf, and, for default of such satisfaction, that they may give, sell, alienate them and dispose and order thereof as with their own goods, as it shall seem to them best to be done, without hindrance, disturbance, vexation or annoyance at the hands of us or our heirs or the officers or ministers of us or our heirs whomsoever. And we give to all and singular our admirals, captains, castellans and their lieutenants and deputies, sheriffs, mayors, bailiffs, constables, searchers, wardens of seaports and other maritime places, masters and mariners of ships and other places whatsoever, and other our officers, ministers, lieges and subjects whomsoever, as well on this side as beyond the sea, by land, sea or water, wheresoever they be stablished, that they be intendant, counselling, aiding and respondent in the premises to the same John and Henry or their factors, attorneys, deputies or servants having or to have sufficient power from the same John and Henry, and, if they die as is aforesaid, then to their heirs or executors, as often as and when they be duly requested by the same John and Henry or either of them or the others aforesaid or any of them on our behalf. In witness, etc. Witness the King at Westminster, 26 September. By writ of privy seal and of the date, etc.[234] [Footnote 234: For an earlier measure for the protection of shipping, see below, Section VII., No. 2.] 29. GRANT OF LIBERTIES TO THE MERCHANTS OF DOUAI [_Charter Roll_, 45 _Henry_ III, _m. 4, No. 32_.], 1260.