Robert Guiscard left for Sicily & began the siege of Palermo

Summary:
Having accepted the surrender of Bari in mid-April, already in May he had left for Sicily with 58 ships, where he began the siege of Palermo 
Dates:
1071 May 
Robert Guiscard (Robert 61)
  • He took the city of Bari on April 15, and sailed to Sicily in July with 58 ships (April 15; July:15. die mensis Aprilis; in mense Iulii) Lupus protospatharius 60.11-13
  • The people of Bari came to terms with him in mid-April; then in May he left and reached Palermo with a shipborne army, besieging the city by land and sea (mid-April; May:in medio mens Aprilis; in mens Magi) Anonymus Barensis 153