Rafaela Ybarra Arambarri de Vilallonga was born in
Bilbao on 16 January 1843 to affluent parents part of the upper-class. Her
baptism was celebrated in her local parish church on 17 January and she was baptized in the name of "Rafaela María de la Luz Estefanía de Ybarra i Arambarri. Her parents were Gabriel Ybarra y Gutiérrez de Caviedes and María del Rosario de Arambarri y Mancebo. Her
Confirmation came on 22 May 1844 and she made her
First Communion on 21 May 1854. Arambarri married
José de Vilallonga y Gipuló (b. 1823) on 14 September 1861. The couple had a total of seven children but two died as infants while another suffered a serious illness in their life. Ybarra suffered a serious illness while in
Paris and she was healed on a trip to
Lourdes. But her mother died at that same time - both instances fell on 24 September 1883 - and her father later followed on 10 August 1890. Her husband later died on 7 May 1898. The
Jesuit priest Francis de Sales Muruzábel was her
spiritual director. In 1890 - with spousal permission - she made private vows to remain chaste and obedient to
God. Bilbao experienced a rapid industrialization process and she set up a series of homes for working-class children and teenage girls as well as workshops for their proper training. Vilallonga promoted a number of institutions for the welfare of women in Bilbao. The premature death of her sister Maria de Rosario prompted her to raise and take care of her half-orphaned nephews which included the Basque linguist
Julio Urquijo Ibarra. On 8 December 1894 - alongside three others - made a solemn pledge to become a mother and educator to all poor children in Bilbao. Vilallonga founded a religious order to achieve this on 8 December 1894 and on 2 August 1897 placed the foundation stone for the motherhouse of the order at Zabalbide in Bilbalo which was later opened on 24 March 1899. The order received diocesan approval after her death on 11 March 1901. , where she and her husband were interred.|alt=A small stone building topped by a cross, in a cemetery. Ybarra died in 1900 after struggling with a serious illness. ==Beatification==