AlejandromSpanish Spanish form of Alexander. This was the most popular name for boys in Spain from the 1990s until 2006 (and again in 2011).
AlfonsomSpanish, Italian Spanish and Italian form of Alphonsus, the Latin form of the Visigothic name *Aþalafuns meaning "noble and ready", derived from the Gothic elements aþals "noble" and funs "ready". This was the name of several kings of Spain (Asturias, León, Castile and Aragon) and Portugal, starting with Alfonso I of Asturias in the 8th century. His name was sometimes recorded in the Latin spelling Adefonsus, and on that basis it is theorized that first element might be from another source (perhaps haþus meaning "battle"). It is possible that two or more names merged into a single form.
ÁlvaromSpanish, Portuguese Spanish form of Alvarus, the Latinized form of a Visigothic name, possibly derived from the elements alls "all" and wars "aware, cautious" or wards "guard". Álvar Fáñez was an 11th-century military commander and duke of Toledo, who appears as a general of El Cid in the epic poem El Cantar de mio Cid. Verdi also used the name in his opera The Force of Destiny (1862).
BaudiliomSpanish From Baudilius, a Latinized form of a possibly Frankish name formed of the element bald"bold, brave". Saint Baudilius (or Baudilus) was a 3rd or 4th-century saint who was martyred at Nîmes in France.
CésarmFrench, Spanish, Portuguese French, Spanish and Portuguese form of Caesar. A famous bearer was the American labour organizer César Chávez (1927-1993).
FedericomSpanish, Italian Spanish and Italian form of Frederick. Spanish poet Federico García Lorca (1898-1936) and Italian filmmaker Federico Fellini (1920-1993) are famous bearers of this name.
JacobomSpanish Spanish form of Iacobus, the New Testament Latin form of James. The apostles are also commonly denoted Santiago in Spanish.
Josém & fSpanish, Portuguese, French Spanish and Portuguese form of Joseph, as well as a French variant. In Spanish and Portuguese-speaking regions it is occasionally used as a feminine middle name (or the second part of a double name), often paired with María. This was the most popular name for boys in Spain for the first half of the 20th century. A famous bearer was the Portuguese novelist José Saramago (1922-2010).
OttomGerman, Swedish, Norwegian, Danish, Dutch, English, Finnish, Germanic Later German form of Audo, originally a short form of various names beginning with Old Frankish aud or Old High German ot meaning "wealth, fortune". This was the name of a 9th-century king of the West Franks (name usually spelled as Odo). This was also the name of four kings of Germany, starting in the 10th century with Otto I, the first Holy Roman Emperor, known as Otto the Great. Saint Otto of Bamberg was a 12th-century missionary to Pomerania. The name was also borne by a 19th-century king of Greece, originally from Bavaria. Another notable bearer was the German chancellor Otto von Bismarck (1815-1898).
RamiromSpanish, Portuguese Spanish and Portuguese form of Ramirus, earlier Ranimirus, a Latinized form of a Visigothic name derived from the Gothic element rana "wedge" or perhaps ragin "law, decree, assessment, responsibility" combined with mers "famous". Saint Ramirus was a 6th-century prior of the Saint Claudius Monastery in León. He and several others were executed by the Arian Visigoths, who opposed orthodox Christianity. This name was subsequently borne by kings of León, Asturias and Aragon.