Nicholas Wychingham, of Upton, Esq. - Various Differences

This well-sourced site shows the info below for Nicholas. The death dates are the same but the birth dates aren't. Both sites show his father as William but Williams birth date aren't the same. Only one wife is mentioned for Nicholas on this site:

https://our-royal-titled-noble-and-commoner-ancestors.com/p2333.htm...

Nicholas Wychingham, Esq., Sheriff of Norfolk & Suffolk1,2,3
Last Edited 4 Apr 2020
M, #70081, b. circa 1375, d. 1434

Father William Wychingham b. c 1344

Nicholas Wychingham, Esq., Sheriff of Norfolk & Suffolk was born circa 1375 at of Wychingham, Norfolk, England.1 He married Joan de Antingham, daughter of Bartholomew de Antingham and Joan, circa 1399.4 Nicholas Wychingham, Esq., Sheriff of Norfolk & Suffolk died in 1434.

Family
Joan de Antingham b. c 1376

Children
Alice de Wychingham+4 b. c 1400, d. 1458
Edmund Wychingham+ b. c 1402, d. 1472
Elizabeth Wychingham+1,5,2,3 b. c 1404, d. b 1445

Citations
[S5] Douglas Richardson, Plantagenet Ancestry, p. 759.
[S16] Douglas Richardson, Magna Carta Ancestry, 2nd Edition, Vol. IV, p. 310.
[S4] Douglas Richardson, Royal Ancestry, Vol. III, p. 307-308.
[S11597] Ancestry.com, Information submitted by William Clark.
[S15] Douglas Richardson, Magna Carta Ancestry, p. 876.

Geni shows this for Nicholas' father William:

Sir William Witchingham (Wychingham)

Birth: before circa 1320
Upton, Blofield, Norfolk, England (United Kingdom)
Death: circa 1381
St. Faith's, Witchingham, Norfolk, England (United Kingdom)

The link provided above shows this for William:

https://our-royal-titled-noble-and-commoner-ancestors.com/p2333.htm...

Father John Wychingham b. c 1308

William Wychingham was born circa 1344 at of Upton, Norfolk, England.

Family

Children
Dionisia Wychingham+ b. c 1362
Nicholas Wychingham, Esq., Sheriff of Norfolk & Suffolk+ b. c 1375, d. 1434

You'll notice that the info for William has no sources, no wife is listed, and his father is named John rather than Richard.

I found that neither that site nor Geni have any sources for William's father. So was he really John or Richard?

John's page: https://our-royal-titled-noble-and-commoner-ancestors.com/p2333.htm...

Richard's page: (Sir) Richard de Wychingham

Seems more research or at least some sources / documentation for William's father needs to be added.

Thanks in advance in any assistance toward validating the correct identity of William's father.