I believe there is a couple of extra generations in his line - plus some data is different ie names and missing dates and places http://www.celtic-casimir.com/webtree/4/3922.htm and also strongly believe him to be the same line as here [Hugues II, Lord of Joinville Hugues II de Joinville] but there is a lot of correcting of names to be done. The line As I found it off GENI is in the about me section
This line is basically names only no dates and no placed - but strongly matches this Given names and titles under Hugues II, Lord of Joinville
I have matched my own files to match the branch of Hugues II, Lord of Joinville which is MP'd