Portugal (1910) Flag: Meaning and History

History of the flag
The flag of the Kingdom of Portugal was adopted in 1830 during the reign of Queen Maria II.
In October 1910, the Republic was proclaimed and replaced it with the current flag of Portugal.
What do the elements of the flag mean?

The crown symbolizes royalty, while the shield in the center represents the victory over the Moorish kings at the Battle of Urique in 1139 and the founding of the kingdom.
Historical color of the Portuguese royalty.
White embodies justice and peace.
