Though eventually Canstatt was released under British diplomatic pressure, some of his Paraguayan co-conspirators weren't - and, notably, Juan Francisco's brothers Gregorio and Teodoro were executed.

[1] By the end of the 1850s and the start of the 1860s, the relatively large Paraguayan community in Buenos Aires had their own media, and would frequently call out for war against the López regime, for a variety of reasons.

Though disagreements between him and the unit's commander, Fernando Iturburu, soon led to his resignation from the Legion, Juan Francisco subsequently joined the Argentine Army, serving as aide-de-camp to President Mitre.

[1] He is attributed as having an important role in convincing Antonio Estigarribia to surrender his force (which included a good part of the pre-war Paraguayan Army)[a] during the Siege of Uruguaiana.

Though this association did not last long, Juan Francisco was in virtue of his political power named Chief of Police in Asunción and promoted to the rank of Colonel in the Paraguayan Army.