He was buried in Minihy-Tréguier in the church he founded.

There is a tomb of his in the cathedral in Tréguier where it was supposedly inscribed in Latin:
Ivo was canonized in June 1347 by Clement VI at the urging of Philip I, Duke of Burgundy.
At the inquest into his sanctity in 1331, many of his parishioners testified as to his goodness, that he preached regularly in both chapel and field, and that under him "the people of the land became twice as good as they had been before".
The connection between religion and good behaviour was especially stressed in his sermons and he is reported to have "chased immorality and sin from the village of Louannec".

Shortly after 1362, the future saint Jeanne-Marie de Maillé reported a vision of Yves (and an ecstasy, raptus), during which he told her, "If you are willing to abandon the world, you will taste here on earth the joys of heaven."

Ivo is often represented with a purse in his right hand (for all the money he gave to the poor during his life) and a rolled paper in the other hand (for his charge as a judge).
Another popular representation of Ivo is between a rich man and a poor one.
The churches of Sant'Ivo alla Sapienza and Sant'Ivo dei Bretoni in Rome are dedicated to him.
He was buried in Minihy-Tréguier in the church he founded.
There is a tomb of his in the cathedral in Tréguier where it was supposedly inscribed in Latin:
Ivo was canonized in June 1347 by Clement VI at the urging of Philip I, Duke of Burgundy. At the inquest into his sanctity in 1331, many of his parishioners testified as to his goodness, that he preached regularly in both chapel and field, and that under him "the people of the land became twice as good as they had been before". The connection between religion and good behaviour was especially stressed in his sermons and he is reported to have "chased immorality and sin from the village of Louannec".
Shortly after 1362, the future saint Jeanne-Marie de Maillé reported a vision of Yves (and an ecstasy, raptus), during which he told her, "If you are willing to abandon the world, you will taste here on earth the joys of heaven."
Ivo is often represented with a purse in his right hand (for all the money he gave to the poor during his life) and a rolled paper in the other hand (for his charge as a judge). Another popular representation of Ivo is between a rich man and a poor one. The churches of Sant'Ivo alla Sapienza and Sant'Ivo dei Bretoni in Rome are dedicated to him.
Ivo of Kermartin