HParis was offered on gift from each of these 3 goddesses. The goddess were Hera, Athena, and Aphrodite. Out of all 3 gifts that were offered he chose Aphrodite’s which was most beautiful woman on Earth to be his wife and the woman was Helen. She was the wife of Menelaus.
Paris went to visitor the palace of Menelaus at Sparta and seduced the queen
Paris took Hele back to Troy with him
Paris taking Helen angered Tyndareus this caused the United powers of the Greeks to retrieve Helen
The Greeks traveled to Troy for 10 years they unsuccessfully besieged Troy in the Trojan war but then Odysseus had and idea to build a horse and have the Greeks hide inside of it.
The Greeks pretended to sale away when really they were hidden in the Horse. That night when the Trojans took it in to their city the Greeks came out and opened the city gates and the Greeks destroyed the city and won the Trojan war.