The name Conrado is derived from the Germanic name Konrad, which is composed of two elements: "kuoni" meaning "brave" and "rad" meaning "counsel" or "advice." This name has its origins in the Middle Ages, around the 7th to 9th centuries, and was particularly popular in German-speaking regions.

The earliest recorded use of the name Conrado can be traced back to the 9th century, when it was mentioned in the Annals of Fulda, a medieval chronicle written by monks in the Benedictine abbey of Fulda, Germany. The name gained popularity due to its association with several historical figures, including Conrado I, the first Duke of Swabia, who lived in the 10th century.

One of the most notable individuals with the name Conrado was Conrado III, also known as Conrad III, who was the King of Germany from 1138 to 1152. He led the Second Crusade to the Holy Land but was ultimately unsuccessful in his efforts to recapture Edessa from the Muslims.

Another prominent figure bearing this name was Conrado de Montferrat, a French crusader and the Marquis of Montferrat from 1187 until his assassination in 1192. He played a significant role in the Third Crusade and was a contender for the throne of Jerusalem after the death of Guy de Lusignan.

In the 16th century, Conrado Gesnero, a Swiss naturalist and physician, made significant contributions to the fields of zoology and botany. He is considered one of the founders of modern zoology and is known for his comprehensive work, "Historiae Animalium," published in the mid-1500s.

Conrado Navel, a Spanish painter and engraver from the 16th century, was renowned for his religious works and portraits. He was active in Madrid and is considered one of the most important artists of the Spanish Renaissance.

While the name Conrado has its roots in the Germanic language, it has been adapted and used in various cultures and languages, including Spanish, Portuguese, and Italian. The name has a strong historical presence, particularly in Europe, and continues to be used today, albeit less commonly than in the past.