Margherita Colonna
She was born in Palestrina about 1255. Her father, Oddone Colonna, died when she was about two years old. Her mother, who was also named Margherita and who was the sister of Matteo Rosso Orsini and a pious woman, died when Margherita was probably a little over ten years old. Margherita was left in the care of her older brothers.
Counter-Reformation
The Pope Marcellus Mass, in short, was not important in its own day and did not help save church polyphony. What is undeniable is that despite any solid evidence of his influence during or after the Council of Trent, no figure is more qualified to represent the cause of polyphony in the Mass than Palestrina. Pope Pius IV upon hearing Palestrina's music would make Palestrina, by Papal Brief, the model for future generations of Catholic composers of sacred music.