how did it get the name?
It is named after Lady Mabel Bradshaigh.
Mab's Cross
According to local legend the cross is named after Lady Mabel Bradshaigh. 
where is wigan on the map of england On the main western north-south highway with distance markers to Preston and Warrington. is it a city? No, but a large town. did romans ever settle in the town before? Yes, In the 1st century, the area was conquered by the Romans. what sort of industries created an impact here? Textile industry. do they promote sport related activities? Yes, sports like professional association football and professional rugby league football. where do they play their tournaments? DW Stadium where is it located? Within the Metropolitan Borough of Wigan, Greater Manchester. is it a home stadium to any of the clubs there? Yes, Wigan Athletic and Wigan Warriors. what other events are conducted there? It has also played host to visiting nations during their European tours. who is the coach of the warriors club now? Adrian Lam what sport do they play? Rugby league football. what type of ball do the former use to play? UNANSWERABLE did women take part in the football association? UNANSWERABLE what other sports are entertained in the town? Rugby and swimming. any notable landmarks that can be seen there? Mab's Cross what is significant about it? It is a medieval stone cross that probably dates from the 13th century. who built it? UNANSWERABLE
wiki:4044308
Mab's Cross [SEP] Legend
According to local legend the cross is named after Lady Mabel Bradshaigh. The legend, recorded in a family history published in 1645, says that when Sir William Bradshaigh, her husband, failed to return from the crusades she married a Welsh knight. When Bradshaigh unexpectedly returned from a ten-year campaign, he murdered his wife's new husband in Newton-le-Willows while he was trying to escape. Lady Mabel did penance for her bigamy by walking from Haigh Hall to a stone cross in Wigan "bare footed and bare legged" once a week for as long as she lived. In another version of the legend, recorded by Norris of Speke in 1564, the Welsh knight is named as Henry Teuther, Sir William is absent for seven years on pilgrimage rather than a crusade and the penance involving the cross is not mentioned.