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Dictionary of Medieval Names
from European Sources

Julian m. Latin Julian 'belonging to Julius'.

The name of 2nd C Roman emperor, a 3rd-4th C French saint, two 4th C martyrs, a 4th C Roman emperor, a 6th C partriarch of Antioch, and a 7th C Spanish saint.

In England, the feminine form Juliana was much more common than the masculine form.

England
Early Modern English
1558–9 Julian StMary-Ke p. 2
France
Latin
1030 Julianus (nom) StVdM-II 712; 1179 Juliani (gen) clairvaux-12thc 169; 1258 Julianus (nom) ArrestReg-volI XXIX, Candlemas; 1260 Juliani (gen) ibid. XVI, St. Martin, Juliano (abl) ibid. XIV, St. Martin, Julianum (acc) ibid. XV, St. Martin, Julianus (nom) ibid. VI, Candlemas; 1273 Iuliano (abl) RegToul-13thC p. 39; 1300 Juliani (gen) St-Bernard-Romans 382, Julianus (nom) ibid. 382; 1378 Juliano (dat) hanquetvol1 951
Old French
1313 Julian Paris1313 p. 96, Julien ibid. p. 20
Middle French
1392 Julien MemBret-II col. 601; 1418 Julien HGParis p. 389; 1423 Julien favier 416; 1438 Julien ibid. 180; 1561 Jullien RegPCC-1 p. 2; 1562 Julien ibid. p. 10; 1563 Julian ibid. p. 22, Julien ibid. p. 21; 1564 Julien ibid. p. 74; 1565 Julien ibid. p. 109; 1566 Julien ibid. p. 200; 1567 Julien ibid. p. 285; 1568 Julien ibid. p. 370; 1570 Julien ibid. p. 426; 1571 Julien ibid. p. 436
Germany
Latin
1186 Julianus (nom) quix-vol2 123
Italy
Latin
1235 Zulianni (gen) TirNot1 1a, Zulianum (acc) ibid. 1a, Zulianus (nom) ibid. 1b; 1285 Iuliani (gen) Perugia1285 p. 159; 1324 Iullano (abl) DSF p. 48, 3732; 1326 Zuliani (gen) Friuli-14thC no. 439; 1348 Iuliani (gen) INP 24; 1376 Iuliano (abl) DouGen1 p. 158; 1464 Julianus (nom) CUP-III-I CCXXXI; 1522x1532 Iugliano (abl) DSF p. 53, 49, Iulianus (nom) ibid. p. 54, 51; 1527 Juliani (gen) Rome1527 p. 83, Julianus (nom) ibid. p. 84
Italian
1513x1521 Iuliano LeoX p. 13
Portugal
Latin
1162 Julianus (nom) PHGCRP-I no. 7; 1190 Julianus (nom) ibid. no. 8; 1211 Julianus (nom) ibid. no. 6
Spain
Latin
1490 Juliani (gen) carbonell-I p. 43
Switzerland
Latin
1163 Julianus (nom) CartHaut 14; 1166 Julianus (nom) ibid. 21
Cite as: J. Uckelman, S.L. Uckelman. "Julian". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Julian.