It's clearly wrong, but I don't have enough information to fix it. I don't want to just adjust the dates to make it fit. It appears to be based on a chart made in 1854, which might not be reliable. If I am reading the chart correctly, both Henry and his son William lived 1384-1430. Which can't be right. Also, it's Kingswinford, Staffs, not Swinford.
Here is a site with more detailed information.
https://profchrisbaker.com/2021/02/04/kigswinford-families-the-corbyns-the-bendys-and-the-hodgetts-part-1-the-corbyns-of-corbyns-hall/
He says that Henry died in 1400 and his son William was born in 1384, which makes more sense. In fact, all of the dates in this line on Wikitree should probably be later by about 30 or 40 years. But I don't have the time to follow up on this right now.
Having said that...
Here is a record from Common Pleas in 1403.
Henry Corbyn is suing Thomas Flemyng of Kyngesswynford for trespass: breaking into his close/enclosed land in Kyngesswynford and causing damage to crops worth 40 shillings. That would put his date of death after 1400, but it would mean adjusting his birthdate. I don't want to open that can of worms.
second entry:
http://aalt.law.uh.edu/AALT2/H4/CP40no570/aCP40no570fronts/IMG_0823.htm
Here is the son, William, in 1420.
third line: William Corbyn of Kyngeswynford in the same country of Staffs, "gentelman"
http://aalt.law.uh.edu/H5/CP40no636/bCP40no636dorses/IMG_1643.htm
