St. Christopher is an early Christian martyr who is counted as an intercessor for persons with epilepsy. He is known for, at some point of his life, being a very strong man, carrying people on his shoulders across a raging river. It is said he carried one child who became so heavy he feared they both might drown; the child was Christ, Who bore the sin of the world. St. Christopher suffered under the Roman Emperor Decius.
Troparian of St Christopher Tone 4 In beautiful garments woven from thy blood thou dost stand before the King of Heaven. For thou dost chant the Thrice-holy hymn with Angels and Martyrs. By thy supplications save thy servants.
Source of icon: http://stlouiscatholic.blogspot.com/2011/01/ora-pro-nobis.html