Maud "Matilda" de Baliol

Fictional?

From https://en.wikipedia.org/wiki/John_Balliol

It has been established that John and Isabella had at least one child: Edward Balliol, Scottish pretender, (d.1367). Married to Marguerite de Taranto, daughter of Philip I, Prince of Taranto (d. 1332) – annulled or divorced with no issue. However, other children have been linked to the couple as other possible issue:

• Agnes (or Maud or Anne) Balliol was married to Bryan FitzAlan, Lord FitzAlan, and feudal Baron of Bedale. They were parents to Agnes FitzAlan (b. 1298), who married Sir Gilbert Stapleton, Knt., of Bedale (1291–1324). Gilbert is better known for his participation in the assassination of Piers Gaveston, Earl of Cornwall.

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She probably didn't exist, according to Stirnet:

(ii)+ other issue - Henry (b c1284/5, dsp 16.12.1332), Margaret (or Agnes or Maud) (b c1282, d unm), Anne (b c1286)

There is some confusion re the identity of King John's daughters. Various sources identify 2 daughters but they are named differently, albeit normally Margaret and Anne. Various sources (including 'RoyalData' and GenEU) suggest that the younger daughter married Brian FitzAlan of Bedale but TCP (FitzAlan) makes no such suggestion whilst RoyalData notes that it is not certain that Anne ever existed.