Here's another timeline from my alternate-history message-board, After Palma: Vikings of the Balearics. Although the opening post does not specify a point of divergence, it seems that in 1110 AD, a Norwegian Crusading fleet is pushed back to Sicily by bad winds rather than continuing onto the Holy Land. There, spurred by a rise of Islamic piracy in the Western Mediterranean, the Norwegian King Sigurd attacks the Balearic Islands and parts of mainland Muslim Spain.