It was developed by an Austrian called Curt Herzstark, who ended up being interned in Buchenwald in this horrific concentration camp in the Second World War.
The eighteen-year-old suspect comes from the same circle as the main suspect, a nineteen-year-old Austrian accused of planning a deadly attack with bladed weapons and the " construction of a bomb."
By 1796, after many years of war, the Republic of Venice had depleted its war fleet and the French - led by Napoleon Bonaparte - marched into neutral Venice during campaigns against the Austrians.