Maurice 'the Younger' Menteith, 3rd Earl of Menteith - Not the son of Maurice "The Elder" de Menteith, 2nd Earl of Menteith

His profile states Maurice 'the Younger' Menteith, 3rd Earl of Menteith was the son of Maurice "The Elder" de Menteith, 2nd Earl of Menteith.

I think Maurice "The Elder" de Menteith, 2nd Earl of Menteith was his brother, and his father should be the individual listed as the father of Maurice "The Elder" which would be Gilchrist.

http://www.thepeerage.com/p512.htm#i5111
Muireadhach II, Mormaer of Menteith was the son of Gilchrist Menteith, 1st Earl of Menteith. He died circa 1233.
He gained the title of 3rd Earl of Menteith.

https://en.wikipedia.org/wiki/Muireadhach_II,_Earl_of_Menteith
Muireadach II of Menteith (also written as Murethach, Murdoch or Maurice), ruled 1213-1231, was the son of Gille Críst and the third known Mormaer of Menteith. Muireadach gained the Mormaerdom by challenging the rights of the current Mormaer, his elder brother, also called Muireadhach, hence Muireadhch Mór (in English, "the elder").