6203906 A Frankincense tree above an Almond tree, after a treatise by Zakariya ibn Muhammad al-Qazwini (ink and pigments on European laid paper) by Turkish School, (13th century); 33 x 20 cm; Walters Art Museum, Baltimore, USA; (add.info.: Abu Yahya Zakariya\' ibn Muhammad al-Qazwini (1203-1283) was a Persian physician, astronomer, and geographer from the Persian town of Qazvin. He served as legal expert and judge (qadi) in several localities in Persia and at Baghdad. He travelled around in Mesopotamia and Syria, and finally entered the circle patronized by the governor of Baghdad, \'Ata-Malik Juwayni (d. 1283 CE).); Turkish, out of copyright.