Yakhiwe phakathi kuka-1763 no-1792, i- Inqaba yaseGraça, eduze kwedolobha lasePutukezi lase I-Elvas, yamiswa ukuvikela imingcele yezwe ekusongelweni kwaphakade kokuhlaselwa komakhelwane bayo abanamandla baseSpain. Isakhiwo esiqinile futhi esihle kakhulu esimelela isibonelo sekwephuzile sokwakhiwa kwamasosha e-Renaissance, ebesivele siphelelwe yisikhathi ngesikhathi sakhiwa ngenxa yokubukeka kwezikhali ezinamandla nezanamuhla.
Inhle futhi ingenakungenwa, le nqaba inezingqimba ezintathu zokuzivikela, ngasinye sihlukaniswe ngohlelo oluyinkimbinkimbi lwezindonga nemisele. Udonga lwangaphandle lumiswe njengenkanyezi enkulu, ngesitayela se- ezinye izinqaba ezindala zaseYurophu njengalezo zeJaca eSpain, iNaarden eHolland noma iPalmanova e-Italy.
Akwaziwa noma ukwakheka kukaGraça (igama lakhe langempela ngu I-Forte de Nossa Senhora da Graça) uphendula ngezidingo zempi noma kunalokho inketho yobuhle. Kunoma ikuphi, kuyamangaza isivakashi. Ngaphakathi kukhona idolobha elincane eligcinwe ngokungenakulinganiswa nazo zonke izakhiwo eziyinkimbinkimbi ezinikeza umuzwa ongajwayelekile wokunethezeka.
Eminyakeni edlule, isisekelo sasihlukunyezwa futhi uMnyango Wezokuvikela wasePutukezi wasishiya lesi sakhiwo. Namuhla i-Fortress of Graça yamukelwa yi-World Monuments Fund ne-UNESCO njengendawo okufanele ivikelwe. Abahambi baseSpain bakuthola kulula ukuvakashela lesi simangaliso, esisendaweni engaphesheya nje komngcele, ngamakhilomitha angama-25 ukusuka edolobheni lase Badajoz.