Kammala jumlar da ke gaba: A ranar 24 ga Agusta, 1911, mijinta ya zama Shugaban da aka zaba na farko na Jamhuriyar Portugal kuma, ta hanyar fadadawa, Lucrécia ta zama Uwargidan farko na kasar, tana da shekaru sittin da shida. Duk da ra'ayinta na goyon bayan masarauta, Lucrécia ta goyi bayan mijinta, kuma ta koma tare da dangin zuwa Fadar Belém, inda ta fi sadaukar da kai ga gida, bisa ga "al'adar mata" na lokacin. Duk da haka, Uwargidan Shugaban kasa ta guje wa bayyanar da jama'a da kuma tunawa da shekaru biyu na
Kafa Jamhuriyar, a cikin 1912, na ɗaya daga cikin lokutan da ta halarci taron jama'a. A ranar 4 ga Oktoba, 1913, ta jagoranci shayi na yamma don 'ya'yan ma'aikatan National Press, kasancewar an karbe ta a matsayin matar Shugaban Kasa. Kashegari, a ranar cika shekaru uku da kafuwar tsarin Jamhuriyar, ta halarci wasan kwaikwayo a Teatro Nacional de São Carlos, amma ba a ba ta wurin zama a cikin fadar shugaban kasa ba. A watan Nuwamba na wannan shekarar, ta halarci "bikin lambu" da Manuel de Arriaga ya shirya wa matukan jirgin ruwan Brazil da suka ziyarci Lisbon a yayin bikin cika shekaru 23 da kafuwar Jamhuriyar Brazil.