Bartonia

Bartonia is the het ship between Bartleby MontClair and Sonia the Hedgehog from the Sonic the Hedgehog fandom.

Canon
The two appear exclusively in Sonic Underground.

Sonia and Bartleby we're formerly engaged, though Sonia called off the engagement for unknown reasons. While Bartleby is narcissistic, he has been shown to care for Sonia.

Fanon
Although not a very popular ship for Sonia, Bartonia has quite a few supporters.

Fandom
AO3

DeviantArt
 * bartonia tag on DeviantArt
 * bartlebyxsonia tag on DeviantArt
 * soniaxbartleby tag on DeviantArt