I recommend a Taiwan TV series with the princess and emperor of the previous dynasty as the main characters. In it, the female lead will embroider a handkerchief with the pattern of a dragon on the horizon for the male lead.

There seemed to be a few movies where the Empress Dowager wanted the male protagonist to marry her niece. The female protagonist's brother fell in love with the Empress Dowager's niece's sister or sister.

Answer 1

"My Beloved Concubine, I've Got One" is an ancient romance novel written by the author, a loli beauty. The general plot of this novel is as follows:

She was originally a woman, but she had transmigrated into a puppet emperor who was disguised as a man and had no real power.
He was originally a man, but for the sake of his grand ambitions, he had gone to her country to enter the palace and 'become' a palace maid.
The minister suspected that she had a Dragon Yang fetish, so she made him an imperial concubine.
In the end, she was given the title of Imperial Consort and had no peaceful days from then on!
He would accompany her when she showered.
He would accompany her to sleep.
In short, no matter what she did, he would accompany her!
In the end, a little emperor was born.
When the minister found out that her identity as a woman wanted to force her to step down, she was helpless!
He suddenly descended like an angel. How dare he touch my beloved consort? I will make all of you die without a complete corpse!
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"The Empress of the World" was a modern romance novel written by the author, Wu Xiong. The general plot of the novel was:

Who said that women could only hide in boudoirs, who said that women could not interfere with political power, and who said that women could not rule the world?
In Baohua Hall, sandalwood incense was lit on the platform. Smoke lingered around the stage as they sang and danced. Their sleeves fluttered in the wind, and the bell struck the chime. The music was melodious. In the center of the hall, on a golden throne carved with dragons, sat a king who looked down on the world. Today was the day she ruled the world. All the officials had to pay their respects. She was the first female emperor of the Cloud Fantasy Continent, Wang Xuyao.
She used to be the daughter of an official who was ignorant of the world. However, her father was framed by a treacherous official. Her world changed overnight and she became a lonely orphan.
She had once thought of marrying a good man for the rest of her life, but fate did not seem to let her go. First, she was kidnapped and sold into a brothel, and by chance, she met the most important man in her life. She thought that she had finally found someone to rely on in this life, but who knew that things were often not as she wished? She was actually summoned into the palace to become the emperor's concubine.
Perhaps, perhaps everything was destined. He was destined to never get love in this life. He was destined to roll around in the government for the rest of his life. He was destined to never walk the ordinary path in this life...
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"The Adorable Concubine's Mistaken Provoke of the Nine Kings" was an ancient romance novel written by the author, God's Little Beloved. The general plot of this novel was:

She had crossed over and met a peach blossom by accident. What kind of soul-stirring fate would bring her?
He was King Rong, a well-known tyrant who hid his true identity. As the youngest son of the late emperor who had survived by luck, he was cynical, indulged in gambling, and was temperamental. In fact, he was the scheming and cunning overlord of the Cold Cold Palace. Because of a posthumous edict from the late Emperor, he became a thorn in the Emperor's heart.
…
She could not forget that day in the Treasure Dragon Hall. He stepped forward and blocked the sword for her. He raised the gold medal high and said in a sonorous and powerful voice,"The death exemption medal bestowed by the previous emperor is here. I want to see who dares to touch her." For her, he did not hesitate to expose himself and increase the suspicion of the current Emperor.
…
Let's see how the Tyrannical Evil King will choose between her and the Jianghu.
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"The Thousand-faced Princess and the Gentleman Prince" was a Xianxia novel written by the author I promised God. The general plot of this novel was:

There was a beautiful legend about a mortal woman who fell in love with the master of the Fish Palace in the sea. The two of them had a bumpy road of love and eventually died. However, they had a crystallization of love--the fish princess Yu Xiaoxuan. She was eccentric and very naughty. At a young age, she did not stay by her father's side obediently. She was reluctant to leave a scholar in the world. However, at this time, her true destined lover appeared--the Dragon Prince. He was gentle and elegant, and his demeanor was just right. He was the dream lover of every young girl, and every parent had the urge to kidnap him into their own home to be their son-in-law…
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"Concubine of Destiny" was an ancient romance novel written by the author Fan Yi. The general plot of this novel was:

[Fantasy Time Travel Ancient Proverb Reader] A ridiculous marriage, resulting in a pair of enemies. She fought against powerful ministers, schemed for the country, and ventured into the martial world. After going through house fights, palace fights, martial world fights, and court fights, she finally held hands with the Double-Faced Emperor and was bestowed with the title of concubine!
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"The Black Lotus Queen's Power Overflows the Court" was an ancient romance novel written by the author, Qun Jiu. The general plot of this novel was:

Qiyu Country was defeated and became a subsidiary of Yu Country. Ji Langying, the tribute daughter of Qiyu, was lucky enough to escape on the way to Yu, but her mother died because of it. In order to take revenge, she disguised herself as a man and became the leader of the gang with her perfect shooting skills. Her business also gradually grew bigger and stronger. She should have killed her enemies alone, but two heroic men appeared out of nowhere and chased after her. Prince Qiyu Yan Yi: "Ah Ying, you teach me the bow and arrow. I'll teach you the jade flute. Let's become sworn brothers." Xi Jingyou, the Great Nephew of the Emperor of Yu, said,"I like to be inseparable from you. I'll go and ask Yan Yi for him now!" With the change of times, Ji Langying, who bore a new grudge, entered Yu to become a palace maid, and her nephew, who had reunited with her, became an emperor. "I want to take you as my concubine!" "I want to kill the king, but the king wants to fall in love with me?" "Your Majesty, ChenQie wants to expose the imperial consort for persecuting the concubines." "Ji Mei Ren is a capable assistant in the harem, carry!" "Your Majesty, ChenQie wants to expose the Empress Dowager's secret clique." "Madam Ji has rendered meritorious service in pacifying the previous dynasty. She will be promoted again!" "Your Majesty…" "Wait!" Xi Jingyou held Ji Langying in his arms and caressed her hair affectionately."Ying 'er, you're already the Empress. If you make any more contributions, what should I reward you with?" Ji Langying leaned on his shoulder and smiled charmingly.
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"Di Tai Jiao" was an ancient romance novel written by the author Mu Fei. The general plot of this novel was:

His new book, Delight in the Palace, Book Number 1709869, was the story of a scheming female Spellmaster and an unlucky emperor.
A drop of Golden Branch's blood pierced through the truth, and the dragon and phoenix who had been in love for ten years turned against each other. She was reduced to a lowly servant and covered half of her face with tattoos, but she attracted the love of the young king.
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"Villain Boss, Are You Willing to Be the Male Lead?" This book was an ancient romance novel written by the author, Lobster Crispy. The general plot of this novel was:

[Welcome to the new novel,"I became the favorite of a powerful official after reading the book","My Empress is too rich"] It was originally a leisure tour through the book, but accidentally fell into a bitter drama. She originally wanted to be the white lotus female lead and walk to the peak of her life, but the ending in the book was actually to be bullied and hated? The demonic girl, Mo Xianghe, cherished her life as much as gold. When she saw that the situation was not right, she quickly ran away. She cherished her life and stayed away from the male lead to matchmake the second female lead. If he clung to the right thigh, he would live to a hundred years old. The gentle young master of the martial arts world? A pure and mysterious expert? The flashy Demon Cult Master? A ruthless biological mother? An unfamiliar father with immense power? Mo Xiangshi deeply felt that sometimes having too many thighs was also a sweet burden. After all, if he didn't hug the right thigh, it would be useless in a minute. I accidentally entered the door of lovesickness and knew that he was suffering from lovesickness. The plot was smelly and long. When would I return to my hometown?
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The book,"She Abducted a Small Side Character After She Transformed the Book," was a short story written by the author, Pao Pao. The general plot of this novel was:

The youngest princess of the Heavenly Court, Long Jiujiu, was not doing her job properly. She was reading romance novels from the human world all day long. As the Heavenly Emperor's biological father, he couldn't stand it anymore. He kicked her into the book she was reading in disgust. "Since you like to watch that thing so much, let's go in and play. Treat it as a training experience ~" Long Jiujiu said,"..." Look at his annoying tone. If it weren't for her father, she would have punched him. Humph! However, as she continued to train, Long Jiujiu's eyes lit up. Eh, this little supporting character was still the cutest. The male lead or something, he should stay wherever it was hot in summer! Hence…"Your Highness, bad news! "Your concubine and your guard…seem to be together…" A certain prince who had finally walked on the right path of not courting death was about to pursue his wife when he heard this.
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"Princess Consort, Don't Be Naughty" was a fantasy romance novel written by the author, Hun Tian 'er. The general plot of this novel was:

The bizarre encounter of a gold-medal cheat agent crossing the space-time continent!
Mu Qianxun, a 21st century gold secret agent, accidentally touched the soul of a different world's dragon pearl during a mission and penetrated the body of a young lady from the general's mansion with the same name. Her scumbag sister-in-law chased her down the cliff and was reborn!
The little contracted dragon said,"You're too bad. I don't want to chat with you!"

What was that? The sis-doting brother said,"Who do you like? Just tell me and I'll help you get it back!"

The cold-faced prince said,"Little Xun 'er, if you provoke me, don't go and harm others!"

The enchanting Fourth Prince took the love token!

The Ghost King said,"Little thing! You're the ghost queen destined for me! You still want to run there!"
Qian Xun hid in the space. What was that? Wouldn't that be a dead person? You scared me to death!"
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Traversing the virtual era, cultivating medicine, spirit pets, forming groups, and spatial magic treasures! From now on, the path of rebirth will begin ~~