On 19 Jan 1729 a double wedding was conducted between two sets of brothers and sisters ....

Joseph I King Portugal (age 14) and Infante Mariana Victoria of Spain (age 10) were married. She the daughter of Philippe V King Spain (age 45) and Elisabeth Farnese Queen Consort Spain (age 36). He the son of John V King Portugal (age 39).

Ferdinand VI King Spain (age 15) and Barbara Queen Consort Spain (age 17) were married. She the daughter of John V King Portugal (age 39). He the son of Philippe V King Spain (age 45) and Maria Luisa Savoy. He a great x 2 grandson of King Charles I of England, Scotland and Ireland.