ביאוגרפית הארחות חיים במאגר השו"ת של בר אילן
The author of the Kol Bo was apparently R. Aharon ben R. Jacob ha-Cohen of Narbonne, France (sometimes mistakenly identified as R. Aaron of Lunel). He lived in the thirteenth and
fourteenth centuries and spent some time in Spain. In 1306 he was expelled from France together with all the Jews there, and he settled on the island of Majorca near Spain. The Kol Bo is
apparently the early version of R. Aharon's work Orchot Chayyim, which was written years later. Kol Bo contains Halakhic rulings and discussions of customs on a variety of subjects in
148 sections. It was first printed in Naples in 1490, and was reprinted frequently thereafter. Our database uses Vidavski's edition, Jerusalem 1997.
Orchot Chayyim is a comprehensive work on Halachah and Minhag, consisting of two parts. The first part deals with the rules of prayer, the Sabbath, etc., and was printed in Florence in 1750; the second part, which deals with the rules of circumcision through the rules of burial, was printed in Berlin in 1899-1902 and has 71 chapters, and this part has now been included in the Responsa CD.
