“Mucia Tertia (future wife of Gnaeus Pompey Magnus) was a Roman matrona that lived in the 1st century BC. She was the daughter of Quintus Mucius Scaevola, the pontifex maximus killed by Gaius Marius' supporters in 86 BC. Her mother was a Licinia that divorced her father to marry Quintus Caecilius Metellus Nepos, in a scandal mentioned by several sources. Her name, Mucia Tertia, suggests that she was a third daughter, according to the Roman naming convention for women. Mucia had also two younger brothers from her mother's second marriage”

“Third wife of Pomkpey, Mucia Tertia (whom he divorced for adultery, according to Cicero's letters)
• Gnaeus Pompeius, executed in 45 BC, after the Battle of Munda
• Pompeia, married to Faustus Cornelius Sulla
• Sextus Pompeius, who would rebel in Sicily against Augustus”

Wikipedia: http://en.wikipedia.org/wiki/Mucia_Tertia