User blog comment:SupremeAssassin/Assassin's Creed 3: Connor Is A Master Assassin/@comment-5151072-20120603022921/@comment-4829046-20120607141056

Since the timeline of an ancestor depends on the time before the ancestor reproduces. If Connor gets children at an early stage (like a normal person) then we might see him only during his 20's or 30's unlike Ezio who only got (legitimate) kids in his late 50's..