Tradition credits Alpin with a victory over the Picts who killed himthree months later, displaying his severed head at their camp. Kennethsucceeded him in Dalriada and ruled in Pictavia also, ruling for 16years. This period is obscure but the gradual union of the two kingdomsfrom 843 is no doubt due to much intermarriage. By the Pictish marriagecustom, inheritance passed through the female.