Ulf the Earl

Ulf Thorgilsson, commonly known as Ulf Jarl or Earl Ulf, was a Danish jarl of Skåne and regent of Denmark. Ulf was the son of Thorgil Sprakling and the father of King Sweyn II of Denmark and thus the progenitor of the House of Estridsen, who would rule Denmark from 1047 to 1375. Some sources, especially Swedish sources, referred to the House of Estridsen as the Ulfinger dynasty to honor him.