and plenipotentiary of her nephew the emperor, she met, July, 1529,
Louise of Savoy, who had been granted similar powers by her son Francis
I, to negotiate a treaty of peace. The two princesses proved worthy of
the trust that had been placed in them, and a general treaty of peace,
often spoken of as "the Ladies' Peace," was speedily drawn up and
ratified. The conditions were highly advantageous to the interests of
Spain and the Netherlands. On November 30 of the following year Margaret
died, as the result of a slight accident to her foot which the medical
science of the day did not know how to treat properly, in the 50th year
of her age and the 24th of her regency.

Charles, who had a few months previously reached the zenith of his power
by being crowned with the iron crown of Lombardy and with the imperial
crown at the hands of Pope Clement VII at Bologna (February 22 and 24,
1530), appointed as governess in Margaret's place his sister Mary, the
widowed queen of Louis, King of Hungary, who had been slain by the Turks
at the battle of Mohacs, August 29, 1526.

Mary, who had passed her early life in the Netherlands under the care of
her aunt Margaret, proved herself in every way her worthy successor. She
possessed, like Margaret, a strong character, statesmanlike qualities
and singular capacity in the administration of affairs. She filled the
difficult post of regent for the whole period of twenty-four years
between the death of Margaret and the abdication of Charles V in 1555.
It was fortunate indeed for that great sovereign that these two eminent
women of his house should, each in turn for one half of his long reign,
have so admirably conducted the government of this important portion of
his dominions, as to leave him free for the carrying out of his
far-reaching political projects and constant military campaigns in other
lands. Two years after Mary entered upon her regency Charles appointed