Juleena

Juleena is the het ship between Jules Hedgehog and Queen Aleena Hedgehog from the Sonic the Hedgehog fandom.

Canon
As the show only focuses on the triplets' quest to find their mother, the identity of their father, the true King of Mobius, was never even touched upon by the series' creators.

Fanon
As a result, this is one of the most common ways to not only pair the Queen with a husband, but to solve the mystery of the identity of the triplets' father, at least in fan fiction and fanmade series reboots.