Complex sentence: The Romance languages, sometimes called the "Romanic languages, Latin languages," or "Neo-Latin languages," are a group of languages descended from Vulgar Latin and forming a branch of the Italic languages within the Indo-European language family.
Split into simpler sentences: The Romance languages (more accurately the "Romanic" languages), are a group of languages known also as "Latin languages," or "Neo-Latin languages," and are descended from Vulgar Latin. They form a branch of the Italic languages within the Indo-European language family.