DNA evidence could be used for the first time to resolve a feud over a hereditary title after the Queen personally intervened in the case. The dispute was triggered when an amateur genealogist revealed that a distinguished baronet came from a different bloodline to his relatives, suggesting there may have been an illegitimate child in a previous generation. The two rival branches of the family have since spent thousands of pounds on a legal battle to prove which is the true line.
Peerage authorities have been called upon to determine if genetic material could be used to determine who should inherit the Pringle of Stichill baronetcy.
You can read the details in an article by Gregory Walton in The telegraph at http://goo.gl/c66cJ2.