Board Thread:Spoilers!/@comment-1916997-20170901012801/@comment-1916997-20170923024611

More speculation: Alice could be Lady Tremaine's other daughter aka the other ugly stepsister to Cinderella. Alice's cursed name is Tilly. Wikipedia points out that Tilly can be short for a plant genus that includes some mosses. Moss, like ivy, could grow on a tower. Basically, I'm sticking with Tremaine is Rapunzel, and Drizella and Alice are her daughters, and their curse names both connect them by being plants that could grow on a tower. Here's the plant genus's page:

https://en.wikipedia.org/wiki/Tillandsia