The Portuguese name of the town of Olivenza, administered as part of the province of Badajoz (Spain).
There is an unsettled territorial dispute regarding the municipality of Olivenza/Olivença and the smaller town and municipality of Táliga, both currently administered as a part of the province of Badajoz, in the Spanish autonomous community of Extremadura.
Planned operations against Tui were frustrated, nevertheless, because of the Spanish conquest in Alentejo of Olivenza and Mourão.
On May 31, 1297, the Treaty of Alcanizes was signed by King Ferdinand IV of Castile and King Denis of Portugal, whereby Campo Maior, together with Olivença and Ouguela, were transferred to Portugal.
The Disputed status of Olivenza refers to a dispute between Portugal and Spain over the territory on the border of those two states known as Olivenza (Olivença in Portuguese).
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Olivenza had been under continuous Portuguese sovereignty since 1297 when it was occupied by the Spanish in 1801 and formally ceded by Portugal later that year by the Treaty of Badajoz.