the next family portrait! This time we have Blueblood’s Dukedom
 
From left to right we have  
Cupid  
Blueblood
 
Blueblood is a trans stallion who desperately wanted an heir to his dukedom, as he cannot live forever.  
Knowing the weilders of the elements of harmony are powerful heroes, he chose to look into their families and see if any of them had a brother that may be willing to donate sperm so Blueblood could have a child.  
During this search he ends up meeting Big Macintosh, and the earth pony, while shy, is also incredibly kind, and despite being newly married, agreed to help Blueblood (with the permission of his wife of course)