Hunajavelho
New Bee
Brandstrups site says they're direct descendants of bro Adams Exmoor stock , I've always been told that's 50ish% Amm, 30ish% ligustica plus others.
I certainly can't swear to that though.
That is the foundation, then they have been crossed over and over again with several strains of wich still are the basis for the different lines, most common is anatolica, macedonica, cecropia
and african mostly, sahariensis, monticola, capensis
In Denmark (Brandsturp, Nielsen and other..) in the past decade by caucasica, carnica and carpatica.
Here is the pedigrees for those interested, it goes back all the way to the beginning and continues...
http://perso.fundp.ac.be/~jvandyck/homage/elver/