What day of the week was June 24, 1128?

The day of the week June 24th, 1128 fell on was a Sunday.

Battle of São Mamede the near Guimarães: forces led by Alfonso I defeat forces led by his mother Teresa of León and her lover Fernando Pérez de Traba. After this battle, the future king calls himself "Prince of Portugal", the first step towards "official independence" that will be reached in 1139 after the Battle of Ourique.