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ou oughte to knowe, how that tounes and fortresses, maie bee strong either by nature, or by industrie; by nature, those bee strong, whiche bee compassed aboute with rivers, or with Fennes, as Mantua is and Ferrara, or whiche bee builded upon a Rocke, or upon a stepe hille, as Monaco, and Sanleo: For that those that stande upon hilles, that be not moche difficulct to goe up, be now a daies, consideryng the artillerie and the Caves, moste weake. And therfore moste often times in building, thei seke now a daies a plain, for to make it stronge with industrie. The firste industrie is, to make the walles crooked, and full of tournynges, and of receiptes: the whiche thyng maketh, that thenemie cannot come nere to it, bicause he maie be hurte, not onely on the front, but by flancke. If the walles be made high, thei bee to moche subjecte to the blowes of the artillerie: if thei be made lowe, thei bee moste easie to scale. If thou makeste the diches on the out side thereof, for to give difficultie to the Ladders, if it happen that the enemie fill them up (whiche a great armie maie easely dooe) the wall remaineth taken of thenemie. Therefore purposyng to provide to the one and thother foresaid inconveniences, I beleve (savyng alwaies better judgement) that the walle ought to be made highe, and the Diche within, and not without. This is the moste strongeste waie of {206} edificacion, that is made, for that it defendeth thee from the artillerie, and from Ladders, and it giveth not facilitie to the enemie, to fill up the diche: Then the walle ought to be high, of that heighth as shall bee thought beste, and no lesse thick, then two yardes and a quarter, for to make it more difficult to ruinate. Moreover it ought to have the toures placed, with distances of CL. yardes betwen thone and thother: the diche within, ought to be at leaste twoo and twentie yardes and a halfe broad, and nine depe, and al the yearth that is digged out, for to make the diche, muste be throwen towardes the Citee, and kepte up of a walle, that muste be raised from the bottome of the diche, and goe so high over the toune, that a man maie bee covered behinde thesame, the whiche thing shal make the depth of the diche the greater. In the bottome of the diche, within every hundred and l. yardes, there would be a slaughter house, which with the ordinaunce, maie hurte whom so ever should goe doune into thesame: the greate artillerie that defende the citee, are planted behinde the walle, that shutteth the diche, bicause for to defende the utter walle, being high, there cannot bee occupied commodiously, other then smalle or meane peeses. If the enemie come to scale, the heigth of the firste walle moste easely defendeth thee: if he come with ordinaunce, it is convenient for hym to batter the utter walle: but it beyng battered, for that the nature of the batterie is, to make the walle to fall, towardes the parte battered, the ruine of the walle commeth, finding no diche that receiveth and hideth it, to redouble the profunditie of thesame diche: after soche sorte, that to passe any further, it is not possible, findyng a ruine that with holdeth thee, a diche that letteth thee, and the enemies ordinaunce, that from the walle of the diche, moste safely killeth thee. Onely there is this remedie, to fill the diche: the whiche is moste difficulte to dooe, as well bicause the capacitie thereof is greate, as also for the difficultie, that is in commyng nere it, the walle beeyng strong and concaved, betwene the whiche, by the reasons aforesaied, with difficultie maie be entered, havyng after to goe up a breache through a {207} ruin, whiche giveth thee moste greate difficultie, so that I suppose a citee thus builded, to be altogether invinsible.

BAPTISTE. When there should bee made besides the diche within, a diche also without, should it not bee stronger?

FABRICIO. It should be without doubt, but mindyng to make one diche onely, myne opinion is, that it standeth better within then without.

BAPTISTE. Would you, that water should bee in the diches, or would you have them drie?

A drie diche is moste sureste.

FABRICIO. The opinion of men herein bee divers, bicause the diches full of water, saveth thee from mines under grounde, the Diches without water, maketh more difficulte the fillyng of them: but I havyng considered all, would make them without water, for that thei bee more sure: For diches with water, have been seen in the Winter to bee frosen, and to make easie the winnyng of a citee, as it happened to Mirandola, when Pope Julie besieged it: and for to save me from mines, I would make it so deepe, that he that would digge lower, should finde water.

An advertisemente for the buildyng and defending of a Toune or Fortresse; Small fortresses cannot bee defended; A toune of war or Fortresse, ought not to have in them any retiring places; Cesar Borgia; The causes of the losse of the Fortresse of Furlie, that was thought invincible; Howe the houses that are in a toune of war or Fortresse ought to be builded.

The Fortresses also, I would builde concernyng the diches and the walles in like maner, to the intent thei should have the like difficultie to be wonne. One thyng I will earnestly advise hym, that defendeth a Citee: and that is, that he make no Bulwarkes without distaunte from the walle of thesame: and an other to hym that buildeth the Fortresse, and this is, that he make not any refuge place in them, in whiche he that is within, the firste walle beyng loste, maie retire: That whiche maketh me to give the firste counsaile is, that no manne ought to make any thyng, by meane wherof, he maie be driven without remedie to lese his firste reputacion, the whiche losyng, causeth to be estemed lesse his other doinges, and maketh afraied them, whom have taken upon theim his defence, and alwaies it shall chaunce him this, whiche I saie, when there are made Bulwarkes out of the Toune, that is to bee defended, bicause alwaies he shall leese theim, little thynges now a daies, beyng not able to bee defended, when thei be subject to the furie of ordinance, in soche wise that lesyng them, {208} thei be beginning and cause of his ruine. When Genua rebelled againste king Leus of Fraunce, it made certaine Bulwarkes alofte on those hilles, whiche bee about it, the whiche so sone as thei were loste, whiche was sodainly, made also the citee to be loste. Concernyng the second counsaile, I affirme nothyng to be to a Fortresse more perilous, then to be in thesame refuge places, to be able to retire: Bicause the hope that menne have thereby, maketh that thei leese the utter warde, when it is assaulted: and that loste, maketh to bee loste after, all the Fortresse. For insample there is freshe in remembraunce, the losse of the Fortresse of Furly, when Catherin the Countesse defended it againste Cesar Borgia, sonne to Pope Alexander the vi. who had conducted thether the armie of the king of Fraunce: thesame Fortresse, was al full of places, to retire out of one into an other: for that there was firste the kepe, from the same to the Fortresse, was a diche after soche sorte, that thei passed over it by a draw bridge: the fortresse was devided into three partes, and every parte was devided from the other with diches, and with water, and by Bridges, thei passed from the one place to the other: wherefore the Duke battered with his artillerie, one of the partes of the fortresse, and opened part of the walle: For whiche cause Maister Jhon Casale, whiche was appoincted to that Warde, thought not good to defende that breache, but abandoned it for to retire hymself into the other places: so that the Dukes men having entered into that parte without incounter, in a sodaine thei gotte it all: For that the Dukes menne became lordes of the bridges, whiche went from one place to an other. Thei loste then this Fortresse, whiche was thought invinsible, through two defaultes, the one for havyng so many retiryng places, the other, bicause every retiryng place, was not Lorde of the bridge thereof. Therefore, the naughtie builded Fortresse, and the little wisedome of them that defended it, caused shame to the noble enterprise of the countesse, whoe had thought to have abidden an armie, whiche neither the kyng of Naples, nor the Duke of Milaine would have abidden: and although {209} his inforcementes had no good ende, yet notwithstandyng he gotte that honoure, whiche his valiauntnesse had deserved: The whiche was testified of many Epigrammes, made in those daies in his praise. Therefore, if I should have to builde a Fortresse, I would make the walles strong, and the diches in the maner as we have reasoned, nor I would not make therein other, then houses to inhabite, and those I would make weake and lowe, after soche sorte that thei should not let him that should stande in the middest of the Market place, the sight of all the walle, to the intente that the Capitain might see with the iye, where he maie succour: and that every manne should understande, that the walle and the diche beyng lost, the fortresse were lost. And yet when I should make any retiryng places, I would make the bridges devided in soche wise, that every parte should be Lorde of the bridges of his side, ordainyng, that thei should fall upon postes, in the middest of the diche.