Every site I've looked at his different parents than the ones here on Geni but all the other sites are in agreement that this Roger's parents are Roger le Strange and his wife Maud. Even the Wiki link used in his profile as a source has that.
https://www.wikitree.com/wiki/Strange-128
Son of Roger (Strange) le Strange and Maud (Unknown) le Strange
http://thepeerage.com/p4727.htm#i47264
He was the son of Roger Lestrange, 4th Lord Strange (of Knockyn) and Maud (?)2
https://our-royal-titled-noble-and-commoner-ancestors.com/p528.htm#...
Father Roger le Strange, 4th Baron Strange2,7,17 b. 15 Aug 1301, d. 29 Jul 1349
Mother Maud de Coucy2,7,17 d. b 25 Mar 1344
I didn't notice anything in his profile documenting him as the son of the John le Strange and wife Joan Ingham connected here on Geni, but the other sites list Richardson, Burke's, etc. as sources.
