Igreja de Santa Maria in central Obidos, Portugal.
A Christian church replaced a mosque here in 1148.
Present church dates from the 16th Century.
A web search about this church revealed the following:

"In this church, on 15th August 1441, Infante D. Afonso (later D. Afonso V of Portugal) married his cousin D. Isabel. He was ten and she was eight."

Old version of young love.