[1][2] But his path into the Salesians was not set in stone, for Don Bosco believed his frail health would become an impediment to his ecclesial studies.

His noble household was one of the most powerful families in Poland but the Russians later exiled them to France around 1830 where the clan set themselves up at the Hôtel Lambert in Paris.

Much of his life was spent being shuttled to different health spas in the mountains and along beaches that had "good air" for the afflicted and he was moved to places such as Switzerland and Spain before being sent to doctors on the Italian peninsula and later in Egypt.

[2] In a letter to his sister Maria the priest wrote that he served as the "father, mother, nurse, brother, companion and caretaker" for the prince.

In May 1883 he first met Giovanni Bosco – the founder of the Salesians – and served as his altar server when the priest celebrated Mass at the Hôtel Lambert for his relations.

[3][2] His father desired that his son pursue a diplomatic career but the prince felt a different calling that was aimed towards the priesthood; Pope Leo XIII encouraged him in his vocation to join the Salesians when the two met in Rome.

There was even one occasion when his father tried to get Cardinal Lucido Maria Parocchi to dismiss his son from the Salesians though the prince sent a letter to both expressing his commitment to God and the seriousness of the vows he had made.

He was assigned to the Salesian community and school in Alassio, but on account of his illness was largely confined to his room overlooking the boys' playground.

On 1 December 1978 he became titled as venerable after Pope John Paul II confirmed that Czartoryski had lived a life of heroic virtue.

John Paul II approved this miracle on 20 December 2003 and beatified Czartoyski on 25 April 2004 in Saint Peter's Square.