At the Trident, he didn't appear
until the battle was done.
Game of Thrones Season 1, Episode 8
When your brother
led his army into battle at the Trident,
Game of Thrones Season 3, Episode 3
so my son and his bannermen
may cross the Trident and be on their way.
Game of Thrones Season 1, Episode 9
I looked for you on the Trident.
Game of Thrones Season 6, Episode 3
after his victory at the Trident.
Game of Thrones Season 3, Episode 5