Family: William of Poitou and Cecily

Husband/father: William of Poitou
Wife/mother: Cecily

Individual: William of Poitou

Marital or other families:

• William of Poitou and Cecily

Sex: Male

Source: Complete Peerage, The

• Page: Volume 12, part 2, page 271

Family: Walter de Mayenne and Cecily

Husband/father: Walter de Mayenne
Wife/mother: Cecily

Individual: Walter de Mayenne

Marital or other families:

• Walter de Mayenne and Cecily

Sex: Male

Source: Complete Peerage, The

• Page: Volume 12, part 2, page 271

Family: Warin de Munchensy and Agnes

Husband/father: Warin de Munchensy
Wife/mother: Agnes

Individual: Warin de Munchensy

Marital or other families:

• Warin de Munchensy and Agnes

Sex: Male

Source: Complete Peerage, The

• Page: Volume 12, part 2, page 271

Individual: Agnes

Parental family: Payn Fitz John and Sibyl
Marital or other families:

• Warin de Munchensy and Agnes
• Haldenald de Bidun and Agnes

Sex: Female

Source: Complete Peerage, The

• Page: Volume 12, part 2, page 271

Family: Haldenald de Bidun and Agnes

Husband/father: Haldenald de Bidun
Wife/mother: Agnes