FACTOID #8:Israel's per capita military expenditure is the highest in the world, at over $1,400 per person. Syria, still officially at war with Israel, spends $46.51 per person on its military.
In 1310 John married Elizabeth of Bohemia and thereby became king of Bohemia. He retained his crown even after her death in 1330. He then married Beatrix, daughter of Louis I, Duke of Bourbon.
He was killed fighting (though blind!) alongside the French against the English at the Battle of Crecy, and was succeeded as king of Bohemia by his eldest son Charles I (later Charles IV, Holy Roman Emperor).
His children by Elizabeth of Bohemia were:
Margaret, (1313-1341), who married Henry Duke of Upper Bavaria
John the Blind (Luxembourgish: Jang de Blannen; German: Johann der Blinde von Luxemburg; Czech: Jan Lucemburský) (10 August 1296 – 26 August1346) was the Count of Luxembourg from 1309, King of Bohemia, and titular King of Poland from 1310.
In 1310, John married Elisabeth, heiress of Wenceslaus III of Bohemia, and thereby became King of Bohemia and so one of the seven prince-electors of the Holy Roman Empire.
This marriage produced one son, Wenceslas I of Luxemburg (25 February 1337, Prague–7 December 1383, Luxemburg), duke of Luxemburg and Brabant.