thumb|right|Ogier Ghiselin de Busbecq, 1557, 12.3 × 8.8 cm by [[Melchior Lorck]]
Ogier Ghiselin de Busbecq (1522 in Comines – 29 October 1592 in Saint-Germain-sous-Cailly; ), sometimes Augier Ghislain de Busbecq, was a 16th-century Flemish writer, herbalist and diplomat in the employ of three generations of Austrian monarchs. He served as ambassador to the Ottoman Empire in Constantinople and in 1581 published a book about his time there, Itinera Constantinopolitanum et Amasianum, re-published in 1595 under the title of Turcicae epistolae or Turkish Letters. His letters also contain the only surviving word list of Crimean Gothic, a Germanic dialect spoken at the time in some isolated regions of Crimea. He is credited with the introduction of tulips into Western Europe and to the origin of their name.
Early years
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He was born the illegitimate son of the Seigneur de Busbecq, Georges Ghiselin, and his mistress Catherine Hespiel, although he was later legitimized. He grew up at Busbecq Castle (in present-day Bousbecque, Nord, France), studying in Wervik and Comines, which at the time were all part of Spanish West Flanders, a province of the Holy Roman Empire.
Busbecq's intellectual gifts led him to advanced studies at the Latin-language University of Leuven, where he registered in 1536 under the name Ogier Ghislain de Comines. From there, he went on to study at a number of well-known universities in northern Italy, including taking classes from in Venice.
Like his father and grandfather, Busbecq chose a career of public service. He started work in the court of the later Holy Roman Emperor Ferdinand I in approximately 1552. In 1554, he was sent to England for the marriage in Winchester of the English queen Mary Tudor to Philip II of Spain.
At the Ottoman court
In 1554 and again in 1556,
Busbecq discovered an almost complete copy of the Res Gestae Divi Augusti, an account of Roman emperor Augustus' life and accomplishments, at the Monumentum Ancyranum in Ancyra. He identified its origin from his reading of Suetonius and published a copy of parts of it in his Turkish Letters.
He was an avid collector, acquiring valuable manuscripts, rare coins and curios of various kinds. Among the best known of his discoveries was a 6th-century copy of Dioscorides' De Materia Medica, a compendium of medicinal herbs. The emperor purchased it after Busbecq's recommendation; the manuscript is now known as the Vienna Dioscorides. His passion for herbalism led him to send Turkish tulip bulbs to his friend Charles de l'Écluse, who acclimatized them to life in the Low Countries. He called them "tulip", mistaking the Turkish word for turban (tulipant) which was often decorated with the flower (known in Turkish as lale). Busbecq has also been credited with introducing the lilac to northern Europe (though this is debated)