Yakhiwa phakathi kuka-1763 no-1792, iNqaba yaseGraƧa , eduze kwedolobha lasePortugal i- Elvas , yakhiwa ukuvikela imingcele yezwe ekusongelweni okuqhubekayo kokuhlaselwa okuvela komakhelwane bayo abanamandla baseSpain. Njengoba iyisakhiwo esiqinile nesinobuhle, simelela isibonelo sakamuva sezakhiwo zempi zeRenaissance, esasisiphelelwe yisikhathi ngesikhathi sokwakhiwa kwayo ngenxa yokuvela kwezikhali ezinamandla kakhulu nezesimanje.
Inqaba inamandla futhi ibonakala ingenakunqotshwa, inezingqimba ezintathu zokuzivikela, ngayinye ihlukaniswe uhlelo oluyinkimbinkimbi lwezindonga nemisele. Udonga lwangaphandle lubunjwe njengenkanyezi enkulu, ngesitayela sezinye izinqaba ezindala zaseYurophu njengeJaca eSpain, iNaarden eNetherlands, noma iPalmanova e-Italy.
Akucaci ukuthi umklamo weGraƧa (igama lawo langempela yiForte de Nossa Senhora da GraƧa ) uyasabela ngempela ezidingweni zempi noma uyindlela yokukhetha ubuhle . Kunoma ikuphi, uyahlaba umxhwele izivakashi. Ngaphakathi, kukhona idolobha elincane, eligcinwe kahle kanye nemiklamo eyinkimbinkimbi evusa umuzwa ongavamile wokunethezeka.
Eminyakeni edlule, isisekelo sasuswa empini, futhi uMnyango Wezokuvikela wasePortugal wacishe wasishiya isakhiwo. Namuhla, iGraƧa Fortress iqashelwa yi-World Monuments Fund kanye ne-UNESCO njengendawo okufanele ivikelwe. Abahambi baseSpain bajabulela ukuvakashela lesi simangaliso, esitholakala ngaphesheya komngcele, amakhilomitha angu-25 kuphela ukusuka edolobheni laseBadajoz.