"Did you see the look on Chang’s face when Ginny got the Snitch right out from under her nose?"
-- Ron Weasley to Harry (OP31)
During the Gryffindor vs. Ravenclaw Quidditch match, from which Harry Potter is banned from playing, he and Hermione Granger go with Hagrid deep into the Forbidden Forest to meet his giant half-brother Grawp (OP30).
In spite of Slytherin supporters singing “Weasley is our King” to upset him, Ron Weasley makes some spectacular saves. Ginny Weasley’s capture of the Snitch means that Gryffindor win that year’s Quidditch Cup. The lyrics of “Weasley is our King” are changed to reflect Ron’s prowess and the team’s win (OP30).
This takes place after Harry gets Career Advice from Professor McGonagall (and Fred and George spectacularly leave school) in late April after the Easter holidays (OP29), and before the school exams begin in June (OP31).
Lexicon list of Quidditch teams