Countess Janet Keith Tullibardine - What is known about Lady Mary and her her family?

There might be a mixup of two different ladies ?

So far I’ve found:

Rishworth, John [1450-1533] Born in Northumberland, son of John Rishworth and a Miss Lacy.

In 1488, he settled lands in Horton, Manningham and Haworth on his son.

He married Lady Janet Keith [1449-1483] from Kincardineshire, Scotland.

Their children were Alexander and Agnes.

===References

*https://sites.rootsweb.com/~calderdalecompanion/r.html#r247
*http://www.rushworth.com/hist/

There was definitely a mixup.

Lady Janet Keith Married John Rishworth

Janet Keith was the daughter of William Keith, 1st Earl Marischal & married

John Leslie of Balmain & also Thomas Stewart, 2nd Lord Innermeath

Her sister was Mary Keith who married Sir William Murray, 8th Laird of Tullibardine

Three different people.