Guy Mark Sisson1
Children of Guy Mark Sisson and Lady Emma Bridget Howard
- Ned John Hamilton Sisson2 b. 1989
- Molly Hannah Sisson3 b. 26 Jul 1996
- [S37] BP2003 volume 1, page 690. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S3752] Tabitha Langton-Lockton, “re: Langton-Lockton Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 13 May 2009. Hereinafter cited as “re: Langton-Lockton Family.”
Ned John Hamilton Sisson1
Thor Sweynsson1
Child of Thor Sweynsson
Sweyn Thorsson1
He was feudal overlord of the district of Crawford, which was held of him by his powerful vassal William de Lindsay.1 In 1188/89 he settled in Perthshire, when he granted lands in Gowrie to the monks of Scone.1
Child of Sweyn Thorsson
Alan Sweynsson1
He was Laird of Ruthven.1
Child of Alan Sweynsson and Cecily de Maule
- Sir Walter of Ruthven+2 d. bt 1266 – 1279
Cecily de Maule1
Dau and coheir of Sir William de Maule of Foulis.1
Child of Cecily de Maule and Alan Sweynsson
- Sir Walter of Ruthven+2 d. bt 1266 – 1279
Sir Walter of Ruthven1 
He was also known as Walter Ruthven as of 1234.3 In 1262 he renounced his rights to Foulis.1
Children of Sir Walter of Ruthven and Cecily of Strathearn
- Sir William Ruthven of that Ilk+2
- Sir Gilbert Ruthven1 d. bt 1266 – 1279
- [S37] BP2003 volume 1, page 690. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S5162] Werner Kittel, “re: Normandy Families,” family provided evidence then verified by subsequent research and verification by BENR (101053), 4 February 2011. Hereinafter cited as “re: Normandy Families.”
Robert Lambert Pole Wedlake1 
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Cecily of Strathearn1
Her married name became Fitzalan.3
Children of Cecily of Strathearn and Sir Walter of Ruthven
- Sir William Ruthven of that Ilk+2
- Sir Gilbert Ruthven1 d. bt 1266 – 1279
- [S37] BP2003 volume 1, page 690. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S5162] Werner Kittel, “re: Normandy Families,” family provided evidence then verified by subsequent research and verification by BENR (101053), 4 February 2011. Hereinafter cited as “re: Normandy Families.”
Sir William Ruthven of that Ilk1
In 1291 he did homage to King Edward I.1
Child of Sir William Ruthven of that Ilk
- Walter Ruthven of that Ilk+2 d. b 1330
