Italo-Western vs. Eastern vs. Sardinian. The main subfamilies that have been proposed by Ethnologue within the various classification schemes for Romance languages are: Italo-Western, the largest group, which includes languages such as Catalan, Portuguese, Italian, Spanish, and French.
These contact languages are not to be confused with non-creole varieties of French outside of Europe that date to colonial times, such as Acadian, Louisiana, New England or Quebec French. There are over 15.5 million speakers of some form of based French based creole languages.
The Romance languages evolved from varieties of Vulgar Latin spoken in the various parts of the Roman Empire in Late Antiquity. Latin was itself part of the (otherwise extinct) Italic branch of Indo-European.  Romance languages are divided phylogenetically into Italo-Western, Eastern Romance (including Romanian) and Sardinian.
Nationally, Spanish is the official language—either de facto or de jure—of Argentina, Bolivia (co-official with Quechua, Aymara, Guarani, and 34 other languages), Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico (co-official with 63 indigenous languages), Nicaragua, Panama, Paraguay ...
The Iberian Romance, Ibero-Romance or sometimes Iberian languages are a group of Romance languages that developed on the Iberian Peninsula, an area consisting primarily of Spain, Portugal, Gibraltar, Andorra and southern France. They are today more commonly separated into West Iberian and Occitano-Romance language groups.
Romanian (obsolete spellings: Rumanian or Roumanian; autonym: limba română [ˈlimba roˈmɨnə] (), or românește, lit. 'in Romanian') is the official and main language of Romania and the Republic of Moldova.
The medieval Roman dialect belonged to the southern family of Italian dialects, and was thus much closer to the Neapolitan language than to the Florentine. A typical example of Romanesco of that period is Vita di Cola di Rienzo ("Life of Cola di Rienzo"), written by an anonymous Roman during the 14th century.