Τιβοῦρι
Could not find Τιβουρτίνου in Logeion dictionaries.
Τιβουρτίνου Proper-name adjective: masculine genitive singular, Proper-name adjective: neuter genitive singular of Τιβουρτῖνος
Τιβοῦρι (τὸ) Tibur (auj. Tivoli) v. du Latium, Plut. Qu. rom. 55.