Duke of York, son of that Earl of Cambridge who had been executed for
his part in the Southampton conspiracy, which conspiracy has been
called by an eminent authority the first spark of the flame which in
the course of time consumed the two Houses of York and Lancaster. Left
an infant of three years, it was long before York became a
party-leader, and probably he never would have disputed the succession
but for the weakness of Henry VI, which amounted to imbecility, and the
urging of stronger-minded men than himself. As it was, the open
struggle began in 1455, and did not end until the defeat and capture of
the person called Perkin Warbeck, in 1497. The greatest battles of
English history took place in the course of these campaigns, and the
greater part of the royal family and most of the old nobility perished
in them, or by assassination, or on the scaffold.

But the Yorkist party, though vanquished, was far from extinguished by
the military and political successes of Henry VII. It testifies
emphatically to the original strength of that party, and to the extent
and the depth of its influence, that it should be found a powerful
faction as late as the last quarter of Henry VIII.'s reign, fifty years
after the Battle of Stoke. "The elements of the old factions were
dormant," says Mr. Froude, "but still smouldering. Throughout Henry's
reign a White-Rose agitation had been secretly fermenting; without open
success, and without chance of success so long as Henry lived, but
formidable in a high degree, if opportunity to strike should offer
itself. Richard de la Pole, the representative of this party, had been
killed at Pavia, but his loss had rather strengthened their cause than
weakened it, for by his long exile he was unknown in England; his
personal character was without energy; while he made place for the
leadership of a far more powerful spirit in the sister of the murdered
Earl of Warwick, the Countess of Salisbury, mother of Reginald Pole.