The lowest grade was obtained by Ateneo Law School's Mercedita L. Ona, 83.55%, 2007, which erased the prior record of 84.10%, obtained by Adolfo Brillantes of Escuela de Derecho de Manila (now Manila Law College Foundation) in 1920. Atty. Ona was the just the latest of women first placers. In 1930, Tecla San Andres (an alumna of the UP College of Law and future Senator) broke the proverbial "glass ceiling" when she became the first woman to top the bar with a grade of 89.4%. Ameurfina A. Melencio (also an alumna of the UP College of Law and who later became a Justice of the Supreme Court) has the highest grade of all female bar topnotchers in recorded history, when she obtained a 93.85% rating in 1947.