Ancient Glass Princess is a character that appears in flashbacks in the Adventure Time: Distant Lands special "Obsidian." She is the former ruler of the Glass Kingdom.

Ancient Glass Princess ruled the Glass Kingdom centuries ago when the Larvo attacked the Kingdom. They called for Princess Bubblegum to help them banish the dragon. However, she struggled to know what to do and the dragon was instead defeated when her girlfriend Marceline started singing an angry song to her which made the dragon retreat.

Episode appearances

Minor appearances

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