As far as the series has gone, Brackenfur hasn't died yet.
Brackenfur dies of old age in the warriors series.
No, Brackenfur did not die in the Fourth Apprentice.
Brackenfur became a warrior in the book forest of secrets
Brackenfur's father is Whitestorm. Whitestorm was a respected warrior of ThunderClan and a mentor to many young cats, including Firestar. He was known for his loyalty, wisdom, and skill in battle.
Cinderheart's father is Brackenfur.
Brackenfur's first apprentice was Tawnypaw (Tawnypelt), but Tawnypaw left ThunderClan and joined ShadowClan before she finished her apprentice training.
sorreltail is her mom and brackenfur is her dad
Cinderpelt (formerly)Brackenfur (temporally)CloudtailBramblestar
Their mother is Frostfur
Yes, Brackenfur and Thornclaw are not directly related as siblings or parent and child. However, they are both warriors in ThunderClan and share a close bond as clanmates.
Yes, along with Thornkit, (Thornclaw), and Brightkit, (Lostface/Brightheart).
four, Cinderpelt, Brackenfur, Thornclaw, and, Brightheart
brackenfur is her mate yes and their children are Honeyfern,molekit,poppycloud,and cinderheart.