Afonso I - 1 King of Portugal (27 July 1139 till 6 December 1185) Afonso II - 3 King of Portugal Afonso III - 5 King of Portugal and first King of Algarves Afonso IV - 7 King of Portugal and Algarves Afonso V - 12 King of Portugal and Algarves Afonso VI - 22 King of Portugal and Algarves (15 November 1656 till 12 September 1683).
This name makes me picture an adorable little boy named Alphonso or Alphonsus who can't quite pronounce it yet. I hate those names, but this one is heart-meltingly cute. I hope I never meet a man with big brown eyes and this name. I'd be in trouble ;)
Afonso (1475-1491) was the oldest son of King Joao II of Portugal and his wife Leonor. He was supposed to become King, but died age 16 in a horse accident.
Afonso was the second son of King Afonso II of Portugal and his wife Urraca of Castile. After his brother died without issue, he became King Afonso III of Portugal.
This name is different than the usual popular selections, and that's what makes it great. I always wonder why people tend to use the same names over and over again -- why not go for something unique? ("Unique" as a name just does not cut it. It is no longer unique. There are dozens of little Uniques out there.) Use something like "Afonso" instead!
https://gl.wikipedia.org/wiki/Afonso