The history of the popes, from the close of the middle ages : drawn ...

70 HISTORY OF THE POPES.
Marquis of Musso and Count of Lecco.^ It was only towards
the north that his sovereignty could be extended, and, therefore
Gian Giacomo at once sought to secure an alliance by
marrying his sister Chiara to Count Mark Sittich of Hohenems
in the Vorarlberg, and at the same time formed other plans
for the further extension of his power. For his brother, who
was still in Rome and had become a Protonotary there, he had
already procured a benefice in commendam at Mazzo in Val-
tellina, and now Gian Angelo was about to be elevated to the
bishopric of Chur. The Protestant inhabitants of the Grisons,
however, accused Abbot Theodore Schlegel, who was governing
that diocese as vicar-general, of having secretly furthered this
plan, and caused the unhapp}' man to be executed, after being
horribly tortured, and in spite of his repeated protestations
of his innocence, on January 23rd, 1529. ^ This put an end
to the plan of Gian Angelo becoming Bishop of Chiu".
Still more painful was the blow which the year 1529 was to
bring to the Medici family. The Emperor concluded peace
with Francesco Sforza, and Gian Giacomo repaired personally
to Bologna for the protection of his interests. Here he learned
that investiture was to be refused to him, and that his sole
remaining hope was the intercession of Clement VII. Gian
Angelo, who had become closely associated with the Pope
during the terrible days of the sack of the city, was working
personally for this end in Bologna, but his influence proved
insufficient, and the treaty of December 23rd, 1529, put an
end to the sovereignty of Gian Giacomo.^ The Duke of Milan,
^Cf. Calvi, Fam. Milan, tav. 3 ; Susta, Pius IV., 14-15. See
also Berretta, Gian Giacomo de' Medici in Brianza, 1527-31,
in the Arch. stor. Lomb., XLIIL, 1-2 (1916).
2 Cf. Moor, Geschichte von Kurratien, II., i, 109 seqq. ; Kath.
Schweitzer Blatter, I., 227 seqq. ; VII., 432 seq. ; Weiss, Basels
Anteil am Kriege gegen Gian Giacomo de Medici, 1 531-2, 50,
Basle, 1902 ; J. C. Mayer, St. Luzi bei Chur^ 50-62, Einsiedeln,
1907.
' Cj. SusTA, Pius IV., 16-17. Susta believes that the idea of
connecting the genealogical tree of the Medici of IVIilan with that
of the Florentine family, first arose after the sack of Rome. For
details see infra p. 77.