Joan de Tyas
- Born: Abt 1214, Farnley, West Riding, Yorkshire, England
- Marriage: Sir John de Byron Knight, Lord of Clayton 826,1032,1033
Noted events in her life were:
• Background Information. 842
John de Byron, married Jean or Joan, living in 1300, heiress of Rochdale, and stated to be the widow of Sir Robert Holland and daughter of Sir Baldwin Thias or Sir Balwin Teutonicus or de Tyas.
~History and Genealogy of the Families of Bayard, Houstoun of Georgia, and the Descent of the Bolton Family from Assheton, Byron and Hulton of Hulton Park, p. 53
• Background Information. 784
John de Byron married, as his first wife, Lady Joan, daughter of Sir Baldwin Teutonick or Thies, the widow of Sir Robert Holland, Knight (son of John, son of Ingelram de Holland, of Holland Lancashire). Sir Baldwin Tays was the secretary to Thomas, Earl of Lancaster. John de Byron had in marriage with her, been given from Sir Balwin, all his lands in Rochdale, Lancashire.
~Collins's Peerage of England, Vol. VII, pp. 92-93
Joan married Sir John de Byron Knight, Lord of Clayton, son of Robert de Byron and Maud 826,1032.,1033 (Sir John de Byron Knight, Lord of Clayton was born about 1217 in Clayton, Lancashire, England and died after 24 Jun 1300 in Lancashire, England.)