The name ‘Apollonia’ has gained recent fame as the subject of an ongoing dispute between the estate of the late musician Prince and his muse Patricia Apollonia Kotero (Kotero v Paisley Park Enter LLC, CD Cal, 25-cv-07769). Prince’s estate also filed US trademark applications for two marks containing the word ‘Apollonia’, which were rejected by the USPTO over Kotero’s earlier-filed registrations. In response, Prince’s estate filed cancellation proceedings against her marks. This case highlights the complex interplay between trademark rights, contractual obligations and the passage of time in the entertainment industry. Kotero’s complaint raises critical questions about implied consent, the laches principle and the enforceability of agreements that are decades old.