Greetings all! I am planning on starting a BR campaign where the players will be doing a lot of adventuring, all leading up (at least that's the plan) to a nice trip to Gehenna to take care of The Blowfish, an Abomination that is gorging itself on the proxies of gods and the players will be tasked with dealing with it.

So, one part of the campaign that I would like to incorporate is the recollections of memories associated with previous holders of the Bloodline(s) of the PC's.

Have any DM's used this in their campaign's? If so, how frequently was it used?