The family affiliation was Lancastrian so, despite an accommodation with Edward IV when the fortunes of the Yorkists were in the ascendant, Rhys was in contact with Henry Tudor and was his most prominent Welsh supporter. His continuing loyalty to Henry VII, which resulted in his appointment as a Knight of the Garter in 1505, was transferred to his son, Henry VIII.
Therefore, Guto'r Glyn's evidence, supported by that of Jean Molinet, shows without doubt that it was the men controlled by Rhys ap Tomas[5] who killed King Richard III at the Battle of Bosworth in 1485.
©Ruth E. Richardson 2014
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[5] See: Griffith, Ralph, Sir Rhys ap Thomas and his family: a study in the Wars of the Roses and early Tudor politics, University of Wales Press, 1993, p.43. Also Wales Biography Online.