San Marco in Boccalama
Encyclopedia
San Marco in Boccalama was an island, now submerged, in the Venetian Lagoon
Venetian Lagoon
The Venetian Lagoon is the enclosed bay of the Adriatic Sea in which the city of Venice is situated. Its name in the Venetian language, Laguna Veneta— cognate of Latin lacus, "lake"— has provided the international name for an enclosed, shallow embayment of saltwater, a lagoon.The Venetian Lagoon...

, northern Italy. It was located between Campana, Sant'Angelo della Polvere
Sant'Angelo della Polvere
Sant'Angelo della Polvere is an island in the Venetian Lagoon, in the Contorta channel, not far from the Giudecca and the island of San Giorgio in Alga...

 and the motte di Volpego. The name derived from the presence of a church dedicated to St. Mark, and to its location at the mouth the Lama, an old branch of the river Brenta
Brenta
Brenta may refer to:* Brenta , Italy* Brenta Valley* Brenta Group* Brenta, Lombardy...

's mouth.

An oratory existed here from as early as 1013. After 1328 subsidence
Subsidence
Subsidence is the motion of a surface as it shifts downward relative to a datum such as sea-level. The opposite of subsidence is uplift, which results in an increase in elevation...

 and erosion made life impossible for the monks, and from 1348 it was used as a common burial place in the wake of the outbreak of the Black Death
Black Death
The Black Death was one of the most devastating pandemics in human history, peaking in Europe between 1348 and 1350. Of several competing theories, the dominant explanation for the Black Death is the plague theory, which attributes the outbreak to the bacterium Yersinia pestis. Thought to have...

 in Venice and its neighborhood. The last mentions of the islands date to the 16th century, after which it is likely it had already disappeared.

In the 1990s two medieval ships were found near the submerged island, a rascona (a flat transport boat) and a galley, the first example of this type found so far.
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