Pedzisa mutsara unotevera: Paakadzokera kuPortugal, Possoz akaparadzanisa nguva yake pakati pechikamu cheLapa cheLisbon, kazhinji nguva dzose ari mukambani yehanzvadzi yake Jeanne neshamwari yake Alice Rey Colaço, uye imba yemhuri muEstoril. Baba vake vakafa muna 1912. Mushure mokunge
achirova umambo uye achipandukira tsika dzevanhu vokuPortugal dzokuchengetedza zvinhu uye nzira dzadzo dzekare dzokuona unyanzvi, akabatana neboka revanhu vakanga vachangotanga muPortugal. Akatanga kuratidzira pa "Sociedade Nacional de Belas Artes" (Society of Fine Arts) muna 1909 uye akakurumidza kuzivikanwa, achive anoratidzira nguva dzose pamitambo yegore negore yeSosaiti kusvika muna 1916. Aizoratidzirawo paHumorist uye Modernist Exhibitions kubva muna 1913 kusvika muna 1926, pamwe naJosé de Almada Negreiros nevamwe. Akanga ari mumwe wevakadzi vashoma vemifananidzo vezera rake kuronga kuratidzwa kwega kwebasa rake, mupendi yemafuta, penzura yekudhirowa, gouache kana watercolor. Akakokwa kuti atore chikamu ndiye chete mukadzi anoratidzira mu 2nd Exhibition of Humourists, muna 1913, uye muKuratidzwa kwe "Vashanu Vakazvimiririra" muna 1923. Munzanga yaitongwa nevarume, Possoz aionekwa seakaenzana nevamwe vake vemifananidzo.