Cordero is a given name with origins in the Spanish and Portuguese languages. It derives from the Latin word "cordarius," which means "of or pertaining to a lamb." The name's earliest roots can be traced back to the Iberian Peninsula during the Roman era.

In Spanish, "cordero" directly translates to "lamb," a reference to the young sheep. This connection to lambs likely stems from ancient pastoral societies where sheep were a crucial part of daily life. The name may have been initially bestowed upon children born into shepherding families or communities.

One of the earliest recorded instances of the name Cordero can be found in the 13th-century Spanish epic poem, Cantar de Mio Cid. The poem mentions a character named Cordero, though little is known about their historical significance.

During the Middle Ages, the name Cordero appeared in various Spanish and Portuguese historical records, often associated with religious figures or individuals from noble families. For example, Cordero de Burgos was a 15th-century Spanish prelate who served as the Bishop of Palencia.

In the 16th century, Cordero de Negreiros was a Portuguese explorer and navigator who participated in the exploration of the Brazilian coast. He was born around 1490 and is known for mapping parts of the South American coastline.

Another notable figure was Cordero del Campillo, a Spanish Catholic priest and historian born in 1627. He authored several works on the history of the Catholic Church in Spain and served as the Bishop of Malaga.

In the 19th century, Cordero Delgado was a Peruvian politician and lawyer who played a significant role in the country's struggle for independence from Spain. He was born in 1794 and served as the President of Peru from 1834 to 1835.

Cordero Piñeyro, born in 1856, was a Cuban painter and sculptor known for his works depicting scenes from rural life in Cuba. His paintings and sculptures are considered important representations of Cuban culture and identity.

While the name Cordero has its roots in the Iberian Peninsula, it has since spread to various Spanish-speaking regions and cultures, particularly in Latin America. The name's association with lambs and its biblical connotations have contributed to its enduring use over centuries.