Hij is getrouwd met Jean (Janet) Lady of Direlton Castle Halyburton.
Zij zijn getrouwd rond 1371 te Dirleton Castle, East Lothian, Scotland.
Kind(eren):
https://en.wikipedia.org/wiki/Henry_I_Sinclair,_Earl_of_Orkney
http://www.clansinclairsc.org/princehenry.htm
http://www.goodreads.com/author_blog_posts/2533836-the-patricians-henry-de-st-clair---sinclair-1255---1336-7th-earl-of
http://lindamcmullan.blogspot.com/2011_12_01_archive.html
https://en.wikipedia.org/wiki/Henry_II_Sinclair,_Earl_of_Orkney
http://www.google.com/imgres?imgurl=https://d.gr-assets.com/photos/1357064653p8/657367.jpg&imgrefurl=https://www.goodreads.com/author/show/4524514.Steven_Wood_Collins/blog/tag/orkney-islands&h=411&w=700&tbnid=5rf7oNrJf5e5SM:&docid=fcEoUJgqCSzFlM&itg=1&ei=bsevVcu9JYm3oQTH-r7oCQ&tbm=isch&ved=0CIkBEDMoYjBiahUKEwjLrN7mlu_GAhWJW4gKHUe9D50
https://www.goodreads.com/author/show/4524514.Steven_Wood_Collins/blog/tag/orkney-islands
http://trees.ancestry.com/pt/AMTCitationRedir.aspx?tid=75649477&pid=4179/ Ancestry.com