Also known as:
Joan
Joana
Johanna

Born:
16 February 1452 at Lisbon, Portugal

Short Biography:
Princess, the daughter of Elizabeth and King Alphonsus V of Portugal. Entered a Dominican convent at Aveiro, Portual in 1473. The royal family objected to her taking vows because she might need to marry to insure the continuity of the royal bloodline. She agreed, fended off arranged marriages, and did not take vows until 1485 when the succession was secured.

Died:
12 May 1490 in Aveiro, Portugal of natural causes

Patronage:
 Portugal, diocese of Aveiro