Saints who are also Dogs

This blog has been prompted by doing some work on Byzantine Jerusalem. In about 510 AD, a bloke called Theodosius was travelling about in the Holy Land. He says, 'in the province of Asia there is the city of Ephesus,  which contains the Seven Sleepers, and their puppy Hyrcanus at their feet'. The story of the Seven Sleepers is known to me, a sort of Christian Rip van Winkle narrative.  A group of Christian youths hid inside a cave outside Ephesus around 250 AD, to escape emperor Decius's persecution of the Christians. They woke up again 180 years later during the reign of the Christian emperor Theodosius II, and were seen by a variety of people before dying and going, doubtless, to heaven. The whole narrative caused me to reflect on dog saints. To be sure, the puppy Hyrcanus is not officially designated a saint, but all the same, he might be quite a good patron saint for Ellie, who has not, as yet, been known to sleep for 180 years, but most assuredly likes her bed. I rather like him being called Hyrcanus - implying large and fierce - which in fact suggests that he was little and squashy. Are there other Dog Saints? In the apocryphal Old Testament, we have Tobit's Dog, who perhaps doesn't do anything beyond being a dog, but might be thought of as a role model. In the Greek Orthodox church, there is a strong tradition that St Christopher - he who carried the Christ Child across a raging river - was not merely a giant (as western tradition allows) but a Cynocephalus, a dog headed monster. Additionally, there's a number of remarkable medieval icons of a dog headed St Christopher to prove it. In the west, the middle ages produces the story of the Holy Greyhound ( I believe the most legitimate version is known as St Guinivere, but I could be wrong). A purely folkloric narrative of the loyal dog who tries to protect a child and is misunderstood. Ellie would, I am sure. tell me that she knew all about being misunderstood, but to be perfectly frank, achieving saintly status by sleeping for 180 years is slightly more within her grasp than being bold and pro-active, so perhaps we should dedicate Ellie to St Hyrcanus.