In September 1108 he regained his principality; but the struggle with Tancred continued, until it was composed by Baldwin in 1109.
Nicola e Cataldo, built by Tancred in 1180, may be noted.
On the death of Tancred (1194) and the accession of his young son William III., the emperor came and conquered Sicily and the Italian possessions, with an amount of cruelty which outdid any earlier war or III revolution.
The defeat of Bohemund at Durazzo in 1108 had resulted in a treaty, which made Antioch a fief of Alexius; but Tancred (who in 1107 had recovered Cilicia from the Greeks) refused to fulfil the terms of the treaty, and Alexius (who attempted - but in vain - to induce Baldwin I.
In 1090 Count Roger the Norman (son of Tancred de Hauteville), then master of Sicily, came to Malta with a small retinue; the Arab garrison was unable to offer effective opposition, and the Maltese were willing and able to welcome the Normans as deliverers and to hold the island after the immediate withdrawal of Count Roger.
He appears on the first crusade at Constantinople as one of Godfrey's men; and he helped Tancred to occupy Bethlehem in June 1099.
Henry, skilfully winning over Pisa, Genoa and the Roman Commune, isolated Tancred and intimidated Celestine III., who, on the 14th of April 1191, crowned him emperor at Rome.
Early in 1193 Leopold surrendered his prize, under compulsion, to the emperor Henry VI., who was aggrieved both by the support which the Plantagenets had given to the family of Henry the Lion and also by Richard's recognition of Tancred in Sicily.
On the outward journey he wintered in Sicily, where he employed himself in quarrelling with Philip and in exacting satisfaction from the usurper Tancred for the dower of his widowed sister, Queen Joanna, and for his own share in the inheritance of William the Good.
Besides these three chief eye-witnesses we may also mention the Annales Genuenses by the Genoese consul Caffarus,' and the Annales Pisani of Bernardus Marago, useful as giving the mercantile and Italian side of the Crusade; the Hierosolymita of Ekkehard, the German abbot of Aura, who first came to Jerusalem about 1101 (partly based on the Gesta, but also of independent value: see Hagenmeyer's edition, Tubingen, 1877); and Raoul of Caen's Gesta Tancredi, composed on the basis of information supplied by Tancred himself.