Üsküdar and the Princes’ Islands - Strolling Through Istanbul: The Classic Guide to the City - page 396

in the list of monasteries compiled in 1158 by Manuel I Comnenus.
The monastery had two churches: a katholikon of the Archangel
Michael and a chapel dedicated to a number of martyr saints. The
island's chief fame in more recent times stems from the fact that on
several occasions all the wild dogs of Istanbul were rounded up and
exiled there where they soon ate each other up.
Yassıada, as its name implies, is relatively flat, with a maximum
elevation of 40 metres. It too had a monastery, founded, according
to tradition, in the mid-ninth century by St. Ignatius, twice Patriarch
of Constantinople. The monastery is mentioned in the list compiled
in 1158 by Manuel I Comnenus, who noted that it had a katholikon
dedicated to the Forty Martyrs and also a chapel of the Virgin. Ernest
Mamboury, in his 1943 guide to the Princes' Islands, reports that
he found remnants of one of these churches, whose ruins now seem
to have vanished. Directly above the landing stage we see the folly
that Murray's Handbook of 1892 quaintly describes as “a dilapidated
Anglo-Saxon castle”, built by Sir Henry Bulwer, English ambassador
to the Sublime Porte and brother of the novelist Bulwer-Lytton; here
he is popularly supposed to have indulged in nameless orgies. To
the right of this we see one of the buildings erected for the trial of
the deposed Turkish Prime Minister Adnan Menderes and several of
his associates. After a lengthy trial they were convicted, whereupon
on the night of 16-17 September 1961 Menderes and two of his
ministers were hanged on Imralı, an island of to the south-west in
the Sea of Marmara. Other abandoned buildings on Yassıada were
structures erected in the 1960s for a short-lived military school.
The third of the large islands is nowadays called Heybeliada,
Saddle-Bag Island, from its shape; anciently it was known as Chalkitis
or Halki, from the famous copper mines mentioned by Aristotle.
The island has (or had) two important schools of rather diferent
sorts. The elder, which was closed by the government in 1971, was
the principal theological seminary of the Greek Orthodox Church,
housed in modern buildings among the remnants of the Monastery
of the Holy Trinity, of Byzantine foundation, on an incomparable
site in the saddle between the two summits of the northern hill. The
younger, the Turkish Naval College, is chiefly at the water's edge near