JOHN OF GAUNT
1340 - 1399

John was John of Gaunt, because he was born in Ghent, which you were allowed to spell anyway you wished provided that you were born in medieval times.

John was also the earl of Richmond from 1342 - 1362, the duke of Lancaster from 1362 - 1399, and the duke of Aquitaine from 1390 - 1399.

From 1367 - 1374, John led English soldiers through France, as part of the Hundred Years' War.

Back home, John teamed up with John Wycliffe and had a calming effect on English politicians in general.

THE FAMILY OF JOHN OF GAUNT, DUKE OF LANCASTER
John's father was English king Edward III. John's mother was Philippa of Hainaut.

John's first wife was Blanche, who gave birth to Henry, the future Henry IV, and died in 1369.

In 1371, John married his second wife, Constance of Castile. In 1386, he went down to Spain to claim the crown of Castile and Leon but the project didn't fly. Later, John renounced his claims, Constance died in 1394, and that was that.

In 1396, John married his third wife, Catherine Swynford.

And here is the map of John's march in France

France 1327 - 1377
Click map to enlarge