Domingo Crespo was an Argentine

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 politician who was governor of the province

Provinces of Argentina

Argentina is subdivided into twenty-three provinces and one autonomous city...

 of Santa Fe

Santa Fe Province

The Invincible Province of Santa Fe, in Spanish Provincia Invencible de Santa Fe , is a province of Argentina, located in the center-east of the country. Neighboring provinces are from the north clockwise Chaco , Corrientes, Entre Ríos, Buenos Aires, Córdoba, and Santiago del Estero...

 from 1851 to 1854.

Crespo was a landowner born in Santa Fe City

Santa Fe, Argentina

Santa Fe is the capital city of province of Santa Fe, Argentina. It sits in northeastern Argentina, near the junction of the Paraná and Salado rivers. It lies opposite the city of Paraná, to which it is linked by the Hernandarias Subfluvial Tunnel. The city is also connected by canal with the...

. In 1851 he supported the movement of the Federales

Federales (Argentina)

Federales was the name under which the supporters of federalism in Argentina were known, opposing the Unitarios that claimed a centralised government of Buenos Aires Province, with no participation of the other provinces of the custom taxes benefits of the Buenos Aires port...

led by the caudillo Justo José de Urquiza

Justo José de Urquiza

Justo José de Urquiza y García was an Argentine general and politician. He was president of the Argentine Confederation from 1854 to 1860.He was governor of Entre Ríos during the government of Juan Manuel de Rosas, governor of Buenos Aires with powers delegated from the other provinces...

 against the supremacy of Buenos Aires governor Juan Manuel de Rosas

Juan Manuel de Rosas

Juan Manuel de Rosas , was an argentine militar and politician, who was elected governor of the province of Buenos Aires in 1829 to 1835, and then of the Argentine Confederation from 1835 until 1852...

. He was appointed governor of Santa Fe by the Junta of Representatives of the province on 29 February 1852.

Governor Crespo faced a critical economic situation. His administration controlled spending and paid off debt, bringing order to the provincial budget. Crespo sponsored laws favouring the rent of public lands and encouraging immigration and colonization, and organized a more independent judicial branch.

Crespo was Santa Fe's representative at the meeting summoned in April 1852 by Urquiza in San Nicolás de los Arroyos

San Nicolás de los Arroyos

San Nicolás de los Arroyos is a city in the province of Buenos Aires, Argentina, on the western shore of the Paraná River, 61 km from Rosario. It has about 138,000 inhabitants . It is the head town of the partido of the same name...

 in order to agree on the preliminary steps towards the creation of the National Constitution

Constitution of Argentina

The constitution of Argentina is one of the primary sources of existing law in Argentina. Its first version was written in 1853 by a Constitutional Assembly gathered in Santa Fe, and the doctrinal basis was taken in part from the United States Constitution...

. The San Nicolás Agreement

San Nicolás Agreement

The San Nicolás Agreement was a pact signed on May 31, 1852 and subscribed by all but one of the 14 provinces of the United Provinces of the River Plate . The treaty consisted of 19 articles, and its goal was to set the bases for the national organization of the young Argentine state...

designed the city of Santa Fe as the seat of the General Constitutional Congress, which was held there in 1853.
http://www.rosario.gov.ar/sitio/historia/verHistoriasEscuela.do?id=630&visualizacion=escuela