West come to East

Western dukes of First Crusade,
 from left Godfrey de Bouillon,
Bohemond I of Tarent, 
Raymond IV de Toulouse,
Tancred of Hauteville
Source: wikimedia commons

1097 AD - 2 years after the famous sermon was given by Pope Urban II in Council of Clermont call for Crusades - western knights arrive at Constantinople gates. Between them there four noble dukes: 

• Godfrey de Bouillon - second son of the count of Boulogne, with blood lineage back to Charlemagne. Born around 1060 AD in Boulogne-sur-Mer . Describe by medieval chronicler William of Tyre as taller than 'the average man ... strong beyond compare, with solidly built limbs and stalwart chest, [with] pleasing features  [and] beard and hair of medium blond'.
• Bohemond of Tarent, son of famous Robert Guiscard (the Astute), Duke of Apulia and Calabria
• Raymond IV of Toulouse - count of Toulouse, duke of Narbonne and margrave of Narbonne.
• Tancred of Hauteville, grandson of Robert Guiscard so also the nephew of Bohemond.