Author
- William, of Malmesbury, ca. 1090-1143. 1
- William, of Tyre, Archbishop of Tyre ca. 1130-ca. 1190 1
- Wireker, Nigellus, ca. 1130-ca. 1200 1
- Xenocritus Rhodius ca. 1. Jh. v. Chr. 1
- Xenomedes, Ceus, 5. Jh. v. Chr. 1
- Xenophanes, ca. 570-ca. 478 B.C. 4
- Xenophon of Ephesus 1
- Zacharias, Bishop of Mytilene 1
- Zeno the Stoic 1
- Zenobius, 2nd cent. 1
- Zenodotus Ephesius v330-v260 1
- Zenos Tarsensis 3./2. Jh. v. Chr. 1
- Zoilus, Amphipolitanus, 4. Jh. v. Chr. 1
- Zosimus Thasius 1. Jh. v. Chr 1
