Nicaragua

...
For the case of the functionaries elected by popular vote through closed lists proposed by the political parties under the principle of proportionality, Deputies before the National Assembly, Deputies to the Central American Parliament, Municipal Concejales [Aldermen], Regional Concejales, the lists of candidates must be composed of fifty percent of men and fifty percent of women, ordered in equitable form and presented [in] alternate form; the same ratio of gender must be maintained between proprietary members [proprietarios] and substitutes when they exist [donde los hubiere].
... (Art. 131)

The Mayor, the Vice Mayor, and the Concejales [Aldermen] will be elected by the People through universal, equal, direct, free, and secret suffrage, in accordance with the law. Those candidates who have obtained the relative majority of the votes will be elected Mayor and Vice Mayor, the Concejales will be elected by proportional representation, in accordance with the electoral quotient. The term [periodo] of the municipal authorities will be of five years, counted from the taking possession of the office before the Supreme Electoral Council.
The binomial [binomio] Mayor and Vice Mayor must be formulated under the principle of equality of gender in the exercise of the Local Power, being that one of them must be a woman and the other, [a] man, keeping the proportionality between both genders. The political parties and electoral alliances must present in their list of candidates for Mayor, Vice Mayor and Concejales, fifty percent of men and fifty percent of women.
... (Art. 178)