Guithenoc* Vicomte De Porhoet
Guithenoc* Vicomte was born in 0995.¹   He died at the age of 26 in 1021.¹ 

 Alarun* De Cornouailles
Alarun* was born about 1005.¹   Alarun* is no longer alive.

 Josceline* I Vicomte De Porhoet
Josceline* I Vicomte was born in 1030.¹   He died at the age of 44 in 1074.¹