Alba Carolina Citadel

The Alba Carolina Citadel Romanian: Cetatea Alba Carolina is a star-shaped Romanian citadel located in Alba Iulia. Its production started out on November 4, 1715 all through the Habsburg rule in Transylvania, and became finished in 1738. 20,000 serfs were concerned in its creation, that is expected to have value around 3 million guldens. The fort became constructed on the site of 2 other fortifications: the legionary castle of Legio XIII Gemina called Apulum, as well as the medieval Balgrad citadel. The shape of the fort, an iconic element of Vauban structure, inspired the design of Alba Iulia's town brand while the city followed metropolis branding in 2014.

The citadel is known as after Charles VI, called Carol VI in Romanian, who become the Holy Roman Emperor at the time of the fortress's production. The Holy Roman Emperor changed into extensively seemed to rule with the aid of divine right, although he regularly contradicted or rivaled the Pope, most considerably at some point of the Investiture controversy.