The Donquixote Family ruled over Dressrosa, and, in particular, was famous for enslaving the Tontatta race, by far the smallest intelligent race we've seen in the series.
Chances a Donquixote member gets sent to the land of the "Giants" Elbaph?
The Donquixote family, between Myosgard, Homing, Rosinante, and Doflamingo, are the most represented family from the Celestial Dragons in the series so far.
I think there's a good chance the next Holy Knight is a Donquixote trying to "erase" the shame of Myosgard's actions during the Reverie.
Charlos getting attacked during the Reverie is a gigantic deal that hasn't been addressed yet, and Cipher Pol communication lines should have parsed that Hajrudin is a member of the Straw Hat Grand Fleet that attacked Charlos.
Could also be from Charlos's family, too.
Luffy's nearly killed that fucker twice, LOOOOOOOOOOOOOL