Thanks for everyone's comments. Wikipedia of course came up with an answer - see see http://en.wikipedia.org/wiki/Kings_of_Wales_family_trees I estimate that the Royal baby is 51st in direct line from the 5th century Cunedda of Gwynedd - and of course as several of you said, many thousands of others. The number is approximate as it's difficult to count among so many interlinked trees, but then so is the genealogy! Anna