Born in Pistoia on February 16, 1888, he married in Sesto and joined Breda (Section V, Aeronautics). Two children were born from the marriage: a family like many others. Lisimaco is described by his daughter as a reserved man: he spoke little, wrote poetry, and did not flaunt his political thoughts; nothing suggested anti-Fascist ideas, although the fact that his wife had been Anna Kuliscioff's nurse in Milan and had been tried for aiding Filippo Turati's escape from the city may have weighed upon them. When Lisimaco was forced by yet another request to take a Fascist Party card, he accepted without opposition. Nevertheless, he was part of the clandestine CLN (National Liberation Committee) at Breda.

Most likely based on this suspicion, he was arrested on March 7, 1944, the last day of the strike. His wife went to the German Command in Milan, where they confirmed the arrest and handed over her husband’s wallet and watch. At San Vittore, according to his daughter's testimony, he was brutally tortured.

After nearly two months of imprisonment, he was transferred on April 27 from Platform 21 in Milan to the Fossoli transit camp, where his wife finally managed to visit him and he was able to write her letters. In one, he wrote: "Whatever happens, remember that I have done nothing wrong." After three months, due to the approach of the Allies, all prisoners were transferred to the Bolzano camp, and a few days later, destined for the Mauthausen concentration camp.

Lisimaco was registered on August 7 with the number 82369, and in October, he was transferred to Gusen—a terrible camp where 97 citizens of Sesto perished. After four months in that camp, physical exhaustion led to his death on January 21, 1945. Ten months had passed between his time in four different prisons and the concentration camps.