According to Lady Tremaine, she and Francis had married for love, and she even viewed him as the light of her life. He was the Master of the Mercer's Guild and knew Cinderella's father briefly. It was through this acquaintance that Cinderella's father learned of his death later on, and in turn, led him to ask for the widowed Lady Tremaine's hand in marriage. Francis' death was one of the most prominent factors as to why Lady Tremaine was so bitter, mercenary, and easily jealous.
Marcus Tremaine is the husband of Rapunzel and the father of Anastasia and Drizella. One night, the starving family is traveling through the forest. Desperate for food and because Marcus is sick, Rapunzel breaks into the garden of the witch Gothel. Gothel catches Rapunzel rummaging through the garden and offers her a deal to save her family. However, unbeknownst to Rapunzel, the deal requires her to be locked away in a tower. After finding her damaged cloak, which was planted by Gothel to deceive him, Marcus believes Rapunzel dead and moves on with his life.
Eventually, Marcus marries Cecelia, Ella's mother, and though he is not Ella's birth father, he becomes the only father she knows. On his wedding day, Cecelia gifts him a locket that matches her own, and both lockets glow as a symbol of their love for each other so they can always find one another.
Rapunzel continues to be locked away in the tower, until one day six years later when she manages to escape and reunite with her family. However, upon finding them, she discovers the truth about Marcus's new marriage, leaving her heartbroken. Marcus and Cecelia continue to raise Anastasia and Drizella, while Rapunzel lives as their servant. Rapunzel becomes increasingly jealous of Cecelia, who has earned favoritism from Drizella. She is given a poisonous mushroom by Gothel, who instructs her to place it in Cecelia's drink if she wishes to drive the woman away and regain her place in the family. Rapunzel refuses the offer, until the birthday party of Drizella, in which she places the poison in Cecelia's beverage. Cecelia's heart becomes cursed, prompting her to run away to Wonderland to protect them from her. He uses his locket to track her to that realm's Infinite Maze, but before he can go in, his locket stops glowing. The man then gives on finding her, out of the belief she has stopped loving him and changes because of losing her.
Later, Marcus eventually comes back with Rapunzel, while continuing to raise Ella as his own. One day, Marcus and Rapunzel take the three girls out by the frozen pond to play in the snow. As they are building a snowman, his hat flies onto the ice and Ella goes to retrieve it, not noticing the ice cracking beneath her. Anastasia goes out to warn her and the ice breaks, taking the two girls underneath the freezing water. Marcus dives in after them but is only able to retrieve Ella, as Anastasia dies. Rapunzel becomes angry with Marcus for choosing to save their stepdaughter over their real daughter. With help from Gothel, Anastasia's last breath is preserved in her lungs, leaving her in a state between life and death.
As she eventually becomes known as Lady Tremaine, Rapunzel grows bitter with Marcus over the incident and goes on to conspire with a prince to murder him; resulting in his death. Ella, not knowing her stepmother's involvement in her father's death, vows revenge on the prince but later finds out the truth from Tiana.
The mention of his name contradicts the information given previously in the Disney Villains: Top Secret Files, which had stated that Cinderella's father's last name was "Tremaine".