Chief Armourer of the Kingdom (Portuguese: Armeiro-Mor do Reino, also given as Armador-Mor especially in older sources) was a courtly position in the Kingdom of Portugal, instituted by King Afonso V. Their duties consisted of assisting the monarch with dressing in his armour, taking care of the monarch's weapons, and supplying him whenever he was to take arms.
^ abcLeme, Margarida (2018). Costas com Dom: Família e Arquivo (Séculos XV-XVII) [The 'Dom' Costas: Family and Archive (15th-17th Centuries)] (Doctoral thesis) (in Portuguese). Faculdade de Ciências Sociais e Humanas da Universidade Nova de Lisboa. Retrieved 14 January 2020.
^Lima, Luís Caetano de (1734). "Armador môr, ou Armeiro môr". Geografia Histórica de Todos os Estados Soberanos da Europa (in Portuguese). Vol. I. Lisboa: Officina de Joseph Antonio da Sylva, Impressor da Academia Real. pp. 341–344.