Public holidays
1423, Portugal, Lisboa
| # | Date | Public holiday |
|---|---|---|
| 1 | Wednesday, 1 January 1423 | Ano Novo |
| 2 | Friday, 4 April 1423 | Sexta-Feira Santa |
| 3 | Friday, 25 April 1423 | Dia da Liberdade |
| 4 | Thursday, 1 May 1423 | Dia do Trabalhador |
| 5 | Thursday, 5 June 1423 | Corpo de Deus |
| 6 | Tuesday, 10 June 1423 | Dia de Portugal |
| 7 | Friday, 13 June 1423 | Dia de Santo António |
| 8 | Friday, 15 August 1423 | Assunção |
| 9 | Sunday, 5 October 1423 | Implantação República |
| 10 | Saturday, 1 November 1423 | Todos os Santos |
| 11 | Monday, 1 December 1423 | Independência |
| 12 | Monday, 8 December 1423 | Imaculada Conceição |
| 13 | Thursday, 25 December 1423 | Natal |