It is, though: https://guidelines.euipo.europa.eu/2319054/2227105/trade-mar...
That appears to be saying you cannot make a trademark of something that is well known to be used by someone else, which is very different from needing the new trademark you are trying to register to be well known.
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That appears to be saying you cannot make a trademark of something that is well known to be used by someone else, which is very different from needing the new trademark you are trying to register to be well known.