Jiménez-Mariscal was born in the Spanish municipality of Los Cerralbos.
He professed as a Member of Order of St. Augustine on 6 September 1981, aged 17.
On 11 October 1986, he made solemn vows as a Member of the Order of St. Augustine.
He served as bishop of the Roman Catholic Territorial Prelature of Cafayate, Argentina from 2014 until his death in 2019.
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