Sources |
- [S22] William Farrer and Charles Travis Clay, Early Yorkshire Charters, Volume 10: The Trussebut Fee, with Some Charters of the Ros Fee, (Cambridge, UK: Cambridge University Press, 2013).
- [S4877] Wikipedia.org, "Robert de Ros (died 1227)," https://en.wikipedia.org/wiki/Robert_de_Ros_(died_1227).
- [S4879] Wikipedia.org, "Isabella Mac William," https://en.wikipedia.org/wiki/Isabella_Mac_William.
- [S4880] Wikipedia.org, "Everard de Ros," https://en.wikipedia.org/wiki/Everard_de_Ros.
- [S4881] Wikipedia.org, "Robert Avenel," https://en.wikipedia.org/wiki/Robert_Avenel.
- [S4858] Wikipedia.org, "William the Lion," https://en.wikipedia.org/wiki/William_the_Lion.
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