Saint Demetrius, Metropolitan of Rostov is one such patron of catechists (+1709) and he was acknowledged by Rome as a saint in 1904 as well as by the Orthodox Church.
He was an ethnic Ukrainian whose Kozak father, Sava, was a great financial contributor to churches in Kyiv.
Demetrius was tonsured a monk and excelled in his studies. Following the traditions of the Kyivan Baroque era, he was trained in Catholic scholasticism in Paris and from Paris he took with him numerous Western devotions and a great love for the study of the lives of saints.
His “Lives of the Saints” continue to inspire Eastern Christians to this day and were used by him to inspire love for the study of Christianity and deepened Christian devotion. He was a member of an Orthodox brotherhood of the Immaculate Conception in Kyiv and wore the Brotherhood medal, as well as taking the “bloody vow” to “defend to his dying breath the Immaculate Conception of the Mother of God.”
He prayed the Rosary and was especially devoted to the Joys and Sorrows of our Lady and said the Hail Mary at the turn of EVERY hour, day and night (he would pull himself out of his bed when the clock struck another hour to get on his knees to say a Hail May and then he would get back to bed - he did this throughout every night, 24 hours a day.
He prayed privately before a table in his cell on which always stood a Crucifix with an icon of the Mother of God in which the Christ-Child held up His Hands to show His Wounds. Before the icon kneels a repentant thief - the story behind the icon was that a thief would always pray before this icon as he went out at night to steal. One evening, as he was saying his prayers before the icon, the Christ-Child lifted His Hands from which flowed Blood. Our Lady then told him, “Do you see what you do to my Son when you pray for success in your theft?” The thief repented . . .
As Demetrius wrote his Lives of the Saints, he fell asleep from his ascetic labours. He then had a dream where Saint Orestes the Martyr, about whom he was just writing, appeared to him to tell him, “And what about this wound here that I suffered for Christ’s sake - you didn’t mention that in your writing! And what about what I suffered on my shoulders etc.”
When Saint Demetrius was sent to an area near Rostov for visitation of the parishes there, he came across a priest who was entirely unlettered. Seeing that the Most Holy Eucharist was not reserved in Church, Demetrius asked the priest, “Where do you keep the Most Holy Sacrament of our Lord’s Body and Blood?”
The priest shook his head as he had no idea what Demetrius was talking about. At this point, Demetrius’ translator (for they spoke a language in that area Demetrius could not understand) asked the priest, “Where are the extras?” At this, the priest smiled and took Demetrius into his home to show him a wooden box in a corner where he kept the Holy Eucharist . . . Demetrius was known as a reformer of such ways . . .
He was also a teacher of monks and priestly candidates in the Kyivan Caves Lavra and insisted that the priests under him spend a good deal of time in their sermons explaining the Christian faith and how people are to live morally and the like. He wrote his own sermons in the language close to that of the people so they could understand more readily. He was renowned for charitable works and was never afraid to “dress down” the upper classes to get them to share their wealth with the poor, especially during wars and famines. After his death, his body was found to be incorrupt.
Dom Aelred Graham gives St Demetrius honourable mention in his book, “The Christ of Catholicism” (I think it was that book . . . it’s been a while)
Alex