Sir Oliver Tyrwhitt1
He had two younger sons and two daughters.1
Child of Sir Oliver Tyrwhitt and Jane Umfreville
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Jane Umfreville1
Her married name became Tyrwhitt.1
Child of Jane Umfreville and Sir Oliver Tyrwhitt
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Sir Thomas Umfreville1
Child of Sir Thomas Umfreville
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Brian Tyrwhitt1
He had three younger sons and two daughters.1
Child of Brian Tyrwhitt and Anna Lowther
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Anna Lowther1
Her married name became Tyrwhitt.1
Child of Anna Lowther and Brian Tyrwhitt
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Sir Stephen Lowther1
Child of Sir Stephen Lowther
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Richard Tyrwhitt1
He lived at Tyrwhitt, Northumberland, EnglandG.1 He lived at Assancke, Northumberland, EnglandG.1 In 1301 he held lands in Lincolnshire and Westmorland.1
He had two younger sons.1
Child of Richard Tyrwhitt and Jane Lawson
- Robert Tyrwhitt+1 d. a 1322
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Jane Lawson1
Her married name became Tyrwhitt.1
Child of Jane Lawson and Richard Tyrwhitt
- Robert Tyrwhitt+1 d. a 1322
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Thomas Lawson1
Child of Thomas Lawson
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]
Robert Tyrwhitt1 
He lived at Tyrwhitt, Northumberland, EnglandG.1 He lived at Kettleby, Lincolnshire, EnglandG.1
Child of Robert Tyrwhitt and Agnes Wyckliff
- Sir William Tyrwhitt+1 d. 1377
- [S37] BP2003 volume 1, page 354. See link for full details for this source. Hereinafter cited as. [S37]