Pedro Mateo Merino (1912–2000) was a Spanish Republican Army colonel in the Spanish Civil War.
He fought at the Battle of the Ebro where as a Militia Major he led the 35th Division, replacing General Karol Świerczewski (General Walter).Carlos Engel, Historia de las Brigadas Mixtas del E. P. de la República, 1999, p. 301
He later spent time in exile in the USSR, Czechoslovakia and Cuba.
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