Originally Posted by Lonannuniel
so, when you say starting with the initial E, does that mean their name starts with an E?
All Hannovarians are under the registry rule required to carry the initial of their sire.
For example my stallion starts with a "D" because his sire line come from the D line. His sire starts with a D as does his sire's sire going back many many generations. Hanoverians are easy to trace because of that.
Now Trakhners do the opposite and their initial is taken from the dam line and can prove more difficult to follow. Other warmbloods take the initial from the year they are born with a letter assigned to each year.