Here is a version of Cuchulainn's Design of the red branch of the mythology Irish.
The Conception of Cuchulainn
“When Conchobar MacNessa was king of Ulster, his chiefs noticed a flock of birds feeding on the grass of the plains near Emuin Machae, and they ate them until the earth was naked as far as the eye could see. The warriors were hunters and they set out in their chariots to hunt the birds wherever they would lead them. Dechtire drove his brother Conchobar's chariot, and nine chariots spread over the plain in pursuit of the birds. A silver chain connected each pair of birds, their flight and song were enchantingly beautiful.
Evening was approaching and the people of Ulster sought shelter as it was snowing. They were greeted in a small house by a man who gave them food and drink, and by nightfall the people of Ulster were in joy. Their host informed them that his wife was about to give birth and asked Dechtire to help him. The Ulster people fetched a pair of newborn foals in the snow and presented them to the male child Dechtire was holding in his arms.
In the morning, when the people of Ulster awoke, they saw the child and the foals, but the strange birds and the house were gone; they were just east of Bruig. They then returned to Emuin Machae, where the child grew up for several years until he suddenly fell ill and died. Dechtire mourned the death of his adopted son with all his heart. She asked for water and a copper bowl was brought to her, but every time she brought it to her lips a little creature arose out of the water and jumped to her mouth, each time she looked into the bowl and didn't. saw nothing there. While sleeping, Dechtire dreamed of the man she had seen in the ghost house. He told her that his name was Lugh, son of Ethniu and that it was he who had drawn her to this house and that she was now carrying her son's semen: the boy should be called Setanta and receive the two foals. that were intended for him.
When the people of Ulster saw that Dechtire was expecting a child, they wondered if the father was Conchobar, for the brother and sister were sleeping side by side. Conchobar saved the day by engaging his sister to Sualtam, son of Roech, and brother of Fergus. "
In another version, the hero's mother, Dechtire, is presented not as the sister of Conchobar Mac Nessa, but as the daughter of the druid Cathbad, adviser to Conchobar. The course of the events leading up to the birth of Cùchulain is also different. Dechtire was first married to Sualtam Mac Roech, the brother of Fergus Mac Roech, before having conceived Cùchulain with the god Lugh. Then she fled to the Another World with fifty women, assuming the appearance of birds. It was after swallowing a fly during the wedding feast that she dreamed of the sun god Lugh, who had ordered her to take this trip. Cathbad reassured his son-in-law by telling him that Dechtire was visiting his parents in the Other World, since his mother was the daughter of the god Aengus. In fact, Lugh kept her with him for three years. Dechtire and her companions eventually returned to Emain Macha, the stronghold of the kings of Ulster, in the form of birds. She was pregnant with Lugh, but Sualtam Mac Roth was so happy to find his wife that when the child was born he welcomed her as his own son, who was called Setanta.
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