DuckTales (2017 TV series)
After not speaking to each other for ten years, Scrooge McDuck is reunited with his nephew Donald Duck after he asks Scrooge to babysit his three nephews Huey, Dewey, and Louie for the day. The presence of the newcomers rekindles Scrooge's sense of adventure, leading the group to go on many new treasure-hunting expeditions. The nephews and their new friend Webby seek the truth behind their uncles' strained relationship and the unexplained disappearance of Huey, Dewey, and Louie's mother and Donald's twin sister Della Duck.
Duck family (Disney)
In the story "The Good Old Daze" by Tony Strobl, Grandpa Duck (an older Humperdink) appears in flashback taking care of little Donald along with Grandma. He's portrayed as a dedicated but rigorous grandfather. Grandpa's real name wasn't revealed in this story, but in an untitled one from 1951, where an old lover of Grandma called Humperdink has a cameo appearance. Don Rosa considered that this character became Donald's grandfather. In this same story, Grandma remembers an occasion where she and Humperdink heard one of her favorite songs. She says to herself, "I remember the band played that for Humperdink and me at the Fish Peddler's Picnic in 1905!". Besides, Grandma finds the ruined coat Humperdink had used to let her not step on a mud puddle and some romantic letters addressed to her written by Humperdink. Then she remembers some sweet names Humperdink used to refer to her in those letters.