The 406 is a 99 T plate and has 4 former keepers, I bought it for it's excellent condition and service history and did not really consider the number of owners, if I sell it though the next person might make a big fuss about it.
My 406 was actually one of Peugeot (UK's) own cars for 2 years, then another Garage registered it and used it , then another short ownership, then the last keeper had it 4 years
The BMW Compact Diesel 98 on an S, I had the shock of my life when I got the Reg Doc ......7 Former Keepers (I forgot to ask about it

It's a shame that some cars legaly change owners for genuine resons but this racks up the No. of keepers and sometimes garages register them aswell, the BMW changed hands within the same family twice I found out.
It is a shame you can't get a list of all the former keepers so you can get a feel for what's happened, or can you?