I know it sounds strange, but his father is --> Joscelin I, seigneur de Courtenay {OK}
this his son is --> Joscelin I, count of Edessa (C edit display name locked from II to I)
..then the numbering continues regular (now:).
(in truth nothing strange, you will often find numbering re-starting over when the line changes place, or increases in degree:)
{[do not make me remember the numbers of the Guy of Nantes who go to Spoleto.. with the 3rd older than the 2nd >.<]}
anyway if we want to stay aligned with all the historians, Wikis, Medlands etc etc, without inventing our own personalized numbering..
just scale the locked display name of this https://www.geni.com/people/Josselin-II-de-Courtenay-1st-count-of-E... , from II to I.
all the rest of the line is fine..
[..needless to specify that it was not so quick to unravel this little detail .. while I was trying to orient myself among the primary sources to insert them^^']
