Meaning of the symbols and colors:

The five blue shields represent the five Morisco kings Don Afonso Henriques (the father of the Portuguese kingdom) defeated in the Ourique battle.
The white shield with the five small blue shields inside is the Armor of Don Afonso Henriques. The legend has it that in the Ourique battle the crucified Christ appeared before Don Afonso Henriques and said: "With this sign (the white shield), you will conquer!".
The dots inside each of the blue shield represents the five wounds of Christ. Counting the number of dots in the shields, doubling the ones in the center shield, yields a total of thirty dots representing the thirty silver pieces Judas received for having betrayed Jesus Christ.
The seven castles around the white shield represent the fortified locations that Don Afonso Henriques conquered from the Moors.
The yellow sphere represents the world that Portuguese navigators discovered in the fifteen (XV) and sixteen (XVI) centuries as well as the people with whom they exchanged ideas and traded with.
The green color represents hope and the red the courage and the blood of the Portuguese fallen in combat.
Authors of the flag: Columbano, João Chagas and Abel Botelho.


Significado dos símbolos e cores:

As 5 quinas simbolizam os 5 reis mouros que D. Afonso Henriques venceu na batalha de Ourique.
Os pontos dentro das quinas representam as 5 chagas de Cristo. Diz-se que na batalha de Ourique, Jesus Cristo crucificado apareceu a D. Afonso Henriques, e disse: ``Com este sinal, vencerás!''. Contando as chagas e duplicando por dois as chagas da quina do meio, perfaz-se a soma de 30, representando os 30 dinheiros que Judas recebeu por ter traído Cristo.
Os 7 castelos simbolizam as localidades fortificadas que D. Afonso Henriques conquistou aos Mouros.
A esfera armilar simboliza o mundo que os navegadores portugueses descobriram nos séculos XV e XVI e os povos com quem trocaram ideias e comércio.
O verde simboliza a esperança.
O vermelho simboliza a coragem e o sangue dos Portugueses mortos em combate.
Autores da Bandeira Republicana: Columbano, João Chagas, Abel Botelho