I'm not entirely sure which specific stories this refers to. 'Cornu' could potentially refer to a horn - like object in some ancient or very specific cultural context. It might be a very rare or regional religious or mythological story.
There are many speculations about the man in the iron mask. One theory is that he was an illegitimate son of Louis XIV. He was locked away with an iron mask to hide his identity so as not to cause a scandal or a threat to the king's power. Another view is that he was involved in some sort of political intrigue at the court. However, the exact truth remains uncertain and has been the subject of much debate among historians.
In the story, the man in the iron mask was a mysterious prisoner. His identity was kept secret, and he was forced to wear an iron mask all the time to conceal his face.
Iron Man's origin in the comics involves Tony Stark getting captured and using his engineering skills to create the first Iron Man suit to escape. After that, he continued to improve and develop the technology to become the hero we know.
I haven't come across any common historical or cultural references with this exact description. It could be a very specific and perhaps not well - documented aspect of a particular group's beliefs or practices.
'A Lang Xin Ru Tie' was a modern TV series directed by Chen Shukai and scripted by Liang Liren and Ruan Shaona. The drama was first broadcasted in China Hong Kong in 1994. The main actors included Jiang Hua, Wu Xuewen, Wan Qiwen, etc. The plot was about a reporter named Shen Wenhao (Jiang Hua) who fell in love with a girl named Fang Xiaoxin (Wu Xuewen), but Fang Xiaoxin already had a fiancé named Yu Jiale (Zhen Zhiqiang). The three of them had a complicated love story. The drama was a success in Hong Kong in 1994.
Iron Man Lego was a series of Lego bricks that included models and dolls related to Iron Man. We can see that there are a variety of Iron Man Lego products to choose from, such as the LEGO Iron Man Figure (76206) and the LEGO Iron Man Anti-Hulk Armor (76210). These blocks could be used to piece together the image and armor of Iron Man, allowing Iron Man fans to create their own Iron Man world. In addition, there were other brands of Iron Man models that were compatible with Lego bricks to choose from. In general, Iron Man Lego blocks were a toy suitable for Iron Man fans, allowing them to experience the charm of Iron Man during the assembly.