Parental family: John de Mowbray and Elizabeth de Segrave
Sex: Male
Source: Complete Peerage, The
Parental family: Robert Waterton and Joan de Everingham
Marital or other families:
Note: Or Cecily
Sex: Female
Note: Daughter and (eventually, in her issue) heir of Robert
Source: Complete Peerage, The
Marital or other families:
Title: Duke of Somerset
Sex: Male
Death:
Source: Complete Peerage, The
Parental family: Robert de Willoughby and Elizabeth de Montagu
Marital or other families:
Sex: Female
Note: Daughter and heir of Robert
Death:
Source: Complete Peerage, The
Marital or other families:
Sex: Male
Source: Complete Peerage, The
Parental family: John Welles and Cecily
Sex: Female
Note: "Said" to be daughter of John
Death:
Source: Complete Peerage, The
Source: Complete Peerage, Some corrections and additions to the
Parental family: John Welles and Cecily
Sex: Female
Note: "Said" to be daughter of John
Death:
Source: Complete Peerage, The
Parental family: Henry de Beaumont and Margaret
Marital or other families:
Title: Earl of Warwick
Sex: Male
Note: First son and heir of Henry
Birth:
Death:
Source: Complete Peerage, The