The father of Vivion de Valera led the introduction of what document?
Éamon de Valera Éamon de Valera ( ; ] ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was a prominent politician and statesman in 20th-century Ireland. His political career spanned over half a century, from 1917 to 1973; he served several terms as head of government and head of state. He also led the introduction of the Constitution of Ireland.
Isabella I of Castile Isabella I (Spanish: "Isabel I de Castilla" , 22 April 1451 – 26 November 1504) was Queen of Castile. She was married to Ferdinand II of Aragon. Their marriage became the basis for the political unification of Spain under their grandson, Holy Roman Emperor Charles V. After a struggle to claim her right to the throne, she reorganized the governmental system, brought the crime rate to the lowest it had been in years, and unburdened the kingdom of the enormous debt her brother had left behind. Her reforms and those she made with her husband had an influence that extended well beyond the borders of their united kingdoms. Isabella and Ferdinand are known for completing the Reconquista, ordering conversion or exile of their Muslim and Jewish subjects, and for supporting and financing Christopher Columbus' 1492 voyage that led to the opening of the New World and to the establishment of Spain as the first global power which dominated Europe and much of the world for more than a century. Isabella was granted the title Servant of God by the Catholic Church in 1974.