This name belongs to the Polish nun and mystic, St. Maria Faustyna Kowalska
. Perhaps better known as "the Apostle of the Divine Mercy," Faustyna detailed her visions of Christ in her diary, in which she noted her conversations with Him. Her writings are a beautiful reminder on the importance of mercy in our lives. Hopefully your own little Faustyna, or Faustina, will prove just as merciful.