The Romance language family contains Indo-European languages derived from Vulgar Latin.
The Romance languages (occasionally referred to as Latin languages) are those that have their roots in Vulgar Latin, the common language of the Roman Empire.
Some of the most common Romance languages include:
A total of approximately 791 million people claim one of these five languages as their native tongue.Wikipedia
Since they are all descended from the same parent tongue, many Romance languages are mutually intelligible, including the two most popular Romance languages: Spanish and Portuguese.