Given a premise, retrieve a hypothesis that is entailed by the premise.What began in a.d. 830 as the Doges' chapel for the remains of the evangelist Mark, the republic's patron saint, was rebuilt in the 11th century as a grandiose Byzantine-Oriental basilica influenced by the Hagia Sofia in Constantinople.
The chapel was rebuilt nearly 300 years later.
The original chapel was completed in 830 a.d.