Angola resists the Portuguese under Queen Nzinga Ngola.[1] 16th century: Sikhism founded.[2] One of its tenets is equality for women[3] which extends to allowing them into participate in combat and warfare.[4] See Category:Female Sikh warriors for more information. Early 1500s: Idia, mother of Esigie, the Oba of Benin, is described as a great warrior, and receives much credit for her son's conquest of the Igala.[5] 1501: Christina of Saxony holds the city of Stockholm for the Danish during a Swedish rebellion against the Danish.[6] 1502: Anne Rud defends the Bohus Fortress in the absence of her spouse, commander Henrich Krummedige, during his war with Alv Knutsson.[6] 1505: Ingeborg Tott defends her fief Häme Castle in Finland against the attack from another noble fiefholder.[7] 1511: According to popular legend, Gertruid Bolwater defends Venlo.[8] 1511-1513: Gunilla Bese, widow of the governor of Vyborg Castle, defends it against the Russians.[9] 1513: Catherine of Aragon acts as Regent for Henry VIII and attends the field at the Battle of Flodden Field dressed in armor.[10] 1513-1515: Quilago, queen of the Cochasquí in Ecuador, defense her area against the expansion of the Inca Empire.