Niebla Fort's former headquarter (now a museum), during a representation of the capture of Valdivia

The main fort in Corral

The Valdivian fort system was a series of fortification in Corral Bay, Valdivia and Cruces River made to protect the city of Valdivia, Chile. During the time of the Spanish colony, it was the biggest system of fortification in the Americas. It was also a mayor supply source for spanish ships that crossed the Strait of Magellan. This article has been sent for reconstruction. ... General view of the Corral Bay from Niebla Corral Bay is a bay in the mouth of the Valdivia River, southern Chile. ... The valdivian flag Valdivia is a city in southern Chile, founded by Pedro de Valdivia, located at the confluence of the Calle Calle, Valdivia and Cau Cau rivers, some 15 km east of the coastal town and bay of Corral. ... The valdivian flag Valdivia is a city in southern Chile, founded by Pedro de Valdivia, located at the confluence of the Calle Calle, Valdivia and Cau Cau rivers, some 15 km east of the coastal town and bay of Corral. ... World map showing the Americas The Americas are the lands of the Western hemisphere historically considered to consist of the continents of North America and South America with their associated islands and regions. ... The Strait of Magellan is a navigable route immediately south of mainland Chile, South America. ...

The three biggest forts of this system were the forts of Corral Bay that included:

• San Sebastián de la Cruz fort in Corral (1645),
• Niebla
• and Isla Mancera.

Some other fortifications where built to defend the city from the mapuches such as: This article has been sent for reconstruction. ...

• San Luis de Alba Fort
• Los Torreones

History

Valdivia was founded in 1552 by the spanish conquistador Pedro de Valdivia. Its original name was Santa María la Blanca de Valdivia. Some years later in 1598 the spaniars suffered a several reversal in the War of Arauco, and the defenceless city was abandoned. In 1643 the duch arrived to the ruins and settled in the zone, planing to use Valdivia as a base for attacks on the Spanish empire. After some conflicts with the mapuche indians of the zone, the duch had to leave Valdivia. The valdivian flag Valdivia is a city in southern Chile, founded by Pedro de Valdivia, located at the confluence of the Calle Calle, Valdivia and Cau Cau rivers, some 15 km east of the coastal town and bay of Corral. ... Events April - War between Henry II of France and Emperor Charles V. Henry invades Lorraine and captures Toul, Metz, and Verdun. ... Pedro de Valdivia Pedro de Valdivia (c. ... Events January 7 - Boris Godunov seizes the throne of Russia following the death of his brother-in-law, Tsar Feodor I. April 13 - Edict of Nantes - Henry IV of France grants French Huguenots equal rights with Catholics. ... This article or section does not cite its references or sources. ... // Events January 21 - Abel Tasman discovers Tonga February 6 - Abel Tasman discovers the Fiji islands. ... Military flag of the Spanish Empire from the 16th century up to 1843. ... Mapuche (Mapudungun; Che, People + Mapu, of the Land) are the original Amerindian inhabitants of Central and Southern Chile and Southern Argentina. ...

General view of the fort in Corral

It was then when Pedro Álvarez de Toledo y Leiva, Marquis of Mancera ordered the repopulation of Valdivia and the constructions of several forts. The main forts where built in the Corral Bay, but some other forts where built to protect the city from the mapuche. The valdivian flag Valdivia is a city in southern Chile, founded by Pedro de Valdivia, located at the confluence of the Calle Calle, Valdivia and Cau Cau rivers, some 15 km east of the coastal town and bay of Corral. ... General view of the Corral Bay from Niebla Corral Bay is a bay in the mouth of the Valdivia River, southern Chile. ...

Then the city came to be called The key of the south sea (Llave del Mar del Sur in spanish).

The forts where reinforced several times, and new where added until the late XVIII century.

By the time of Chilean indepence Vlaidvia remained a spanish stronghold, and was percieved as threat to Chiles independence. Lord Thomas Cochrane as admiral of the Chilean navy captured the forts in 1820. He captured them without facing the batteries in a surprise landattack. 1820 was a leap year starting on Saturday (see link for calendar). ...

Valdivia surredered when the news about the fall of Corral Fort come.