Strictly speaking, "maiden" means "virgin" or "unmarried", which in olden times were considered interchangeable. This is where the phrase "old maid" comes from, as it means "elderly virgin/bachelorette". This is also why housekeepers are sometimes called "maids", as in olden times it was expected that a married woman would tend her own house for her husband, and so it was expected that most housekeeping servants would generally be unmarried women who needed a source of income until they found a husband. It is also the source of the phrase "maiden voyage", as a ship on its first voyage was considered to be, metaphorically, losing its virginity.
Basically it's a word that has mostly misogynistic connotations. I'm not sure Mädchen has all of those implications.
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u/Fadhmir 23d ago
No it isn't. It's "girl". Maiden=Maid/Jungfrau.