From this artwork, we have Lemuel, the brother of Taranil. Nimbus, who is mentioned in the text, is their eldest sibling. The Duke and Luna are their parents. Helen is Lemuel's beloved. Taranil was banished because she committed incest with her nephew. https://www.furaffinity.net/view/63578069/

Following their sister's banishment, the brothers were plunged into an abyss of dark torment. Their souls seemed shrouded in an impenetrable gloom, each grappling with the pain in his own way.
Nimbus entered into a bitter conflict with the Duke. Consumed by despair, he committed a daring act—he left the confines of the forest. The powers of young magical beings grew exponentially each year, and Nimbus, leveraging his abilities, traversed hundreds of kilometers. Finding himself far from home, he was truly alone for the first time in his life—in a silent solitude where only his own thoughts kept him company.
Lemmy, however, withdrew into himself even more profoundly. He had long considered himself the unloved child in the family, and after the loss of his sister and his half-nephew, he completely shut himself off from others. Solace he found only in his friendship with a young she-wolf—a chocolate-hued beauty with milky eyes.
From early childhood, Lemmy had enjoyed the freedom to choose his friends, and thus his social circle was far wider than his elder brother's. Nimbus had spent his formative years in near-total isolation, his interactions limited to rare conversations with mentors and his parents. Lemmy, however, lived a full childhood: he played, roamed, and savored every moment. After the reunification of the kingdoms, the pack had grown to an incredible size, boasting plenty of young members—the younger prince's company was the envy of many.
Overwhelmed by conflicting emotions, Lemuel spent several days in a state of oblivion, beside that very chocolate-furred she-wolf whose lineage traced back to the Western Wolves.
During this difficult period, the heart of the aggrieved prince gradually thawed. He dissolved into the warmth and attention of his companion. Although Lemuel did not cross certain boundaries nor reveal the full truth to her, in the depths of his troubled soul, he was hopelessly captivated by her.

"Lemmy, what's wrong?" The she-wolf's milky eyes fixed upon the exhausted prince. He looked as if he had been running for a week, without food or water, and was now lying there, gathering dust.
"We lost you..."
"I was never found to begin with." He didn't flinch. Friends... Ugh. He didn't need that right now. He needed no one. He didn't even need himself.
After a moment's thought, Helen brought over a feather pillow, some water, and some crispy smoked meat strips. Eastern artisans skillfully cured thin slices of meat over smoldering firewood, creating this delicacy. Afterwards, they rubbed it with pungent herbs, which grew in countless varieties on these lands. The result was an insanely spicy and delicious treat, impossible to resist.
Settling next to the listless prince on the pillow, the she-wolf appetizingly crunched on the "chips." The aroma of herbs was enough to pierce even the saddest of muzzles, and the echoes of smoke made Lemmy's stomach growl.
"Stop it, Helen. I'm not in the mood."
"I'm not touching you."
A couple of minutes later, the wolf's stomach was in knots. He knew the taste of these things and was desperately hungry.
"Sacred ancestors, why are you so..."
Without letting him finish, Helen shoved a piece of the treat right into the prince's mouth.
"Gods, this is so good!" Lemmy finally turned to her fully and took the entire wooden bowl for himself, burying his muzzle in it up to his ears.
"Ahaha, slow down, no one's going to take it from you."
Helen nudged the bowl of water toward him, knowing the spiciness would soon burn his mouth. And Lemmy didn't neglect that either.
Having emptied the plate, the prince licked his lips contentedly, but as soon as the meal ended, sadness washed over his muzzle once more.
Letting out an exasperated sigh, Helen nudged the pillow closer. The prince's head sank onto the soft padding.
"Thank you..."
"Oh, come on."
Waving off his gratitude, the girl lay down beside him, but perpendicularly, and also rested her head on the pillow. Her ear pressed close against his neck; she could feel and hear his heart pounding heavily, the pulse in his neck unnervingly slow.
"Lemmy... I heard Rani was banished."
"...Yes. And now I'm alone. Nimbus threw a fit and fought with Father. And no one even tried to stop me. The guards and envoys were running after him, while I... I'm just dust."
"Lemmy, you are not dust." Helen propped herself up and flipped onto her stomach, ending up on top of him, looking down at the prince. "We were looking for you. Our friends were worried."
"...I am nothing to this family."
"You are important to us. In the Eastern Forest, you're the beloved prince, you know. For whom else would they prepare so much meat?" The chocolate-furred beauty smiled.
"Funny that it was the Eastern wolves who learned to play with fire, not the Southern ones."
"It's hotter here than in the North and West, and there are no seas like in the South, so the prey spoils quickly. That's why they figured out how to preserve it longer."
"How do you know? You're from the West."
"Ahaha... I'm a free she-wolf. I can be wherever I want. Besides, thanks to your parents' rule, there are no more borders between the packs. We can try all the exotic foods from every corner of the world!"
"Yeah... The best King and Queen in history..." She heard clear pain and sorrow in his voice again.
"Hey..." With the soft pad of her paw, she gently touched the prince's cheek. "You are as important as your parents. And no less important than your brother." Helen slid off the pillow, moving closer to the prince. Hesitating for a second, she uncertainly rested her head on his chest. "We're here, Lemmy... I'm here."
Several days passed like this. She literally had to pull the heir out of a depression he wasn't very keen on leaving. Conversations about nothing, delicious Eastern spices, the soft fur of the young she-wolf at his side—and slowly, the wounds on his soul began to heal.
He caught himself thinking that looking into those milky eyes, lying in the grass of the Eastern forests, he liked it far more than trailing behind his proud brother, tail-deep in snow.
"I want to try with you..."
"Lemmy, we can't. Rani..."
"I know. I know. But... If I could, I would want to try... specifically with you."
Softly smiling, the she-wolf snuggled closer into his chest, burying herself in his fur.