Family: Jean I Duke Bretagne / Blanca Princess of Navarra (F1959)
m. 1236Teobaldo I King of Navarra (1201-1253) 
|
Thibaut II King of Navarra (1237-1270)  |
| Enrique I King of Navarra (1239-1274) |
| Jean I Duke Bretagne (1212- ) |
Blanca Princess of Navarra (1214-1283)
|
| Jean II Duke Bretagne (1238-1305) |