▁area ▁that , ▁at ▁the ▁time , ▁was ▁considered ▁to ▁be ▁of ▁strateg ic ▁importance ▁to ▁the ▁du k edom . ▁So ▁he ▁modified ▁the ▁original ▁project , ▁to ▁put ▁it ▁into ▁a ▁wider ▁context ▁giving ▁the ▁city ▁of ▁Milan ▁a ▁water ▁connection ▁to ▁the ▁R ivers ▁Add a ▁and ▁T ic ino . ▁ ▁It ▁was ▁constructed ▁by ▁the ▁engineer ▁Bert ola ▁de ▁Nova ▁( 1 4 1 0 – 7 5 ) ▁and ▁inaugur ated ▁in ▁ 1 4 6 5 ▁by ▁Bian ca ▁Maria ▁S for za . ▁ ▁Today ▁it ▁is ▁a ▁popular ▁recre ational ▁area , ▁known ▁for ▁its ▁tran qu il ▁and ▁traffic ▁free ▁cy cling ▁paths . ▁ ▁Bibli ography ▁ ▁No ▁known ▁publications ▁in ▁English , ▁but ▁a ▁mention ▁can ▁be ▁found ▁on ▁p .   3 4 – 3 5 ▁of ▁Had field ' s ▁World ▁Can als , ▁ 1 9 8 6 . ▁. ▁ ▁For ▁an ▁Italian ▁bibli ography ▁see ▁the ▁Italian ▁version ▁of ▁this ▁article ▁on ▁the ▁Italian ▁Wikipedia . ▁ ▁External ▁links ▁▁ ▁N avig lio ▁Mart es ana ▁| ▁N avig li ▁Lomb ardi ▁ ▁Category : Ge ography ▁of ▁Milan ▁Category : Can als ▁in ▁Lomb ard y ▁Category : W ater ways ▁of ▁Italy ▁Category : Transport ▁in ▁Lomb ard y ▁Category : Can als ▁opened ▁in ▁ 1 4 6 5 <0x0A> </s> ▁Sir ▁William ▁C off in ▁( by ▁ 1 4 9 2 - 8 ▁December ▁ 1 5 3 8 ) ▁was