she is having trouble with the maids because the head maid and all the higher ranked maids follow her brother - basically pretty much everyone does. even if she is currently favored by her father and has the key, ultimately its he prince who holds the true power. even the king is dying...so the servants choose to follow the prince aka the next ruler.
so technically she doesn't have actual power just an empty title and a key that doesn't belong to any lock. AND everyone thinks the prince is under "room arrest" because of her - which is kinda true - so they go out of their way to make her realize she is powerless.
and it was transmigration + reincarnation i think. basically this is her 3rd life.
Amazing God tier art BUT plot is confusing as fuck. Why is the princess having issues with internal servant bullshit? Isn't she kinda favored by the current emperor, like what was the point of giving her the rights to the servant key thing if they aren't gonna give a fuck about it?
Also I can't tell if it's a transmigration or time travel plot? She seems to have memories of her childhood and the future like the PTSD from her ex abusive husband and memories of making apple pie. I thought the apple pie baking experience was from her past life and then it says she learned it as a kid from her nanny.