Curator

It’s her husband who has wrong parents, wrong dates - at least, based on source.

https://wc.rootsweb.com/trees/192359/I180513/rogerii-covert/individual

Roger II Covert (Roger I /Covert/) was born ABT 1345 in Eng. He married Isabella (Isabel) Savage, daughter of John I /Savage/ and Margaret /Danyers/. She was born ABT 1376 in Clifton,Cheshire,Eng.

Children of Roger II /Covert/ and Isabella (Isabel) /Savage/ are:

1. Isabella Covertdied in Stopham,Sussex,Eng.
2. Richard Covert.

Except her parentage is actually problematic.

http://www.cybergata.com/roots/3318.htm (Don’t press on the link, site is compromised)

The manor of Chedle belonged to a family of that name in the 12th century. A grandson of the possessor, Sir Roger, left two daughters, one who was named Clemence. Clemence married William de Bagaly, and they had a daughter named Isabel. Isabel married Thomas Danyers. Their daughter married, about 49 Edward III, John Savage as her second husband. Clemence, on of the co-heiresses of Sir Roger de Chedle, had Slifton and divers lands in Chedle by inheritance, which descended to his grand daughter Margaret and John Savage in the right of his wife, he became Lord of Chedle.

Children of Sir John and Margaret Danyers were:

Isabella Savage, who became a nun

Sir John Savage, died in 1386 and was succeeded by his eldest son also named Sir John Savage.

~The Ancient and Noble Family of Savage, pp. 15-17