If Miguel Rivera was adapted in Once Upon A Time Season 7.
Miguel Rivera-Tremaine is the son of Cecelia Rivera and Marcus Tremaine. He is the maternal half-brother of Ella and the paternal half-brother of Anastasia and Drizella Tremaine.
Miguel was born in Wonderland, after Cecelia had been forced to flee there because her heart had been poisoned with a curse that would harm her or her loved ones if she touched them. Because of the curse of the poisoned heart, Cecelia could not hold her baby boy. Cecelia asked her friend Alice to take Miguel somewhere safe and find him a good home. Alice finds Miguel a good home with her friend a shoemaker and his wife. Miguel is raised by loving adoptive parents and an adoptive grandfather named Jeremiah.
At some point, the family becomes refugees and join the resistance started by Princess Tiana. Miguel, a young boy of about 8, contributes to the resistance by polishing shoes and helping his grandfather, a cobbler, mend shoes. Ella has also joined the resistance and thus meets her half-brother of which she had no idea existed.
