What is "rabad"

RABad (ראב”ד, pronounced also Raavad, Ravad or Raivid) is a Hebrew acronym which most commonly refers to Rabbi Abraham Ben David, or the RABaD III. There are three rabbis and scholars referred to by this acronym:

• Rabbi Abraham ibn Daud, the first RABaD, a Spanish-Jewish philosopher and historian
• Rabbi Abraham ben Isaac of Narbonne the Eshkol, called RABad II, being an acronym for Rav Av Beth Din
• Rabbi Abraham ben David of Posquières, called RABaD III, a son-in-law of the former