After Queen Isabella's death in 1504, the Royal Council began to grow corrupt and influenced by the nobility once more. King Philip I was an ineffective ruler who only reigned two years; after him, the government theoretically fell to Ferdinand and Isabella's daughter, Queen Joanna I of Castile, and her six-year-old son Charles of Ghent, the future Emperor Charles V. Joanna was considered incompetent, and Charles too young. Archbishop Cisneros ruled a brief time as regent, but was undercut by noble schemes and spent much of his time simply trying to hold together the national government.