Don Benito dates from the 15th century, when it was founded by refugees from
Don Llorente, who deserted their own town due to the danger of floods from the Guadiana. On 28 March 1809, the 9 km separating Don Benito from
Medellín was the site of a major French victory against Spanish troops during the
Peninsular War. By 2021, the municipal government of Don Benito worked alongside that of
Villanueva de la Serena to fuse the two neighbouring municipalities into a single one, paving the way for a 2022 non-binding consultation. On 8 November 2021, the
Council of Ministers sanctioned the celebration of the consultation, to be held on 20 February 2022. Both municipalities approved the merging, in the case of Don Benito by a whisker (a 66.2% of yes votes relative to the 66.0% threshold set in advance). ==Demographics==