11th April 1713
The territory was subsequently ceded to the Crown of Great Britain in perpetuity by Spain under article X of the Treaties of Utrecht. Despite some military attempts by the Spanish to retake it in the 18th century, most notably in the Great Siege of 1779–1783, the Rock has remained under British control ever since.
In that treaty, Spain ceded Great Britain “the full and entire propriety of the town and castle of Gibraltar, together with the port, fortifications, and forts thereunto belonging … for ever, without any exception or impediment whatsoever.”
The Treaty stipulated that no overland trade between Gibraltar and Spain was to take place, except for emergency provisions in the case that Gibraltar is unable to be supplied by sea. Another condition of the cession was that “no leave shall be given under any pretence whatsoever, either to Jews or Moors, to reside or have their dwellings in the said town of Gibraltar.” This was not respected for long and Gibraltar has had for many years an established Jewish community, along with Muslims from North Africa.
Finally, under the Treaty, should the British crown wish to dispose of Gibraltar, that of Spain should be offered the territory first.
Image: The pre-1801 Union Flag (of Great Britain). Note the term “King’s Colours”. This term is used by US-based flag makers and sellers because this was one of the flags used by the King’s forces during the American Revolutionary War.