Edward of Brotherton
Edward of was born about 1319.  He died before September 1337.

 Alice of Brotherton
Alice of was born about 1324.  She died in November 1351 in Bungay, Suffolk, England, murdered by husband.

 Margaret Marshal (Duchess O Norfolk) Plantagenet
Margaret Marshal (Duchess O Norfolk) was born in 1322 in ,,Norfolk,England.¹   She died at the age of 77 on March 24th, 1399 in Carthusian Church,de Grey Friars,London,England.¹