But a simple backline play orchestrated by Norman nine minutes later, which resulted in an unconverted try to Brisbane winger Gerard Beale, gave Brisbane a six-point lead before a blockbusting try to forward Matt Gillett put the match beyond doubt with 10 minutes to go.
The Broncos dominated the first half but were only able to open up an eight-point buffer, with converted tries to Justin Hodges and Alex Glenn outweighing Akuila Uate's solo effort for the Knights.
Hodges' effort, his first of the year, was particularly classy from the powerful Queensland and Australian representative.
The silky centre glided past the normally reliable Matt Hilder, who missed nine tackles, to run 40 metres and cross down next to the posts.
Newcastle centre Wes Naiqama played just 23 minutes before succumbing to a knee injury, while both Jarrod Mullen and Uate both picked up injuries in the first half but were able to finish the game.
The Knights are already without captain Kurt Gidley, who will miss between three and five weeks with a dislocated shoulder injury, and can ill afford any more injuries ahead of a tough away fixture against Canterbury next week.
- AAP