Jon Bulwer was Lord of Blackcrown and head of House Bulwer during the early reign of King Robert I Baratheon. He took to wife Victaria Tyrell, a daughter of Ser Victor Tyrell and a distant cousin of the main branch of House Tyrell, and by her had a single trueborn daughter, Alysanne. Jon died of a summer fever, and his seat passed to that young daughter, who succeeded him as Lady of Blackcrown.

Family
- Spouses
- Victaria Tyrell
- Children
- Alysanne Bulwer
