The father of Vivion de Valera led the introduction of what document?
Vivion de Valera Vivion de Valera (13 December 1910 – 16 February 1982) was an Irish scientist, businessman, lawyer and politician. He was the eldest child of Éamon de Valera and Sinéad de Valera and was named after his paternal grandfather, Juan Vivion de Valera.
Children of Palhavã The children of Palhavã (Portuguese "Meninos de Palhavã") were three male natural sons of King John V of Portugal (1706–1750), which were recognised by the monarch in a document issued in 1742, which was published only after the death of the king, in 1752.