Although Li Shimin punished Zhou Shaofan and removed the other party, he did not say the reason why Zhou Shaofan detained Liu Renliang, but even if Li Shimin didn't say it, Li Xiu could guess something, and the party who was wrong in this matter must be Zhou Shaofan, otherwise Li Shimin would not have directly punished Zhou Shaofan without even explaining.

Sure enough, after hearing Li Xiu's inquiry, Liu Renliang also showed a little anger on his face and said: "I received an appointment from the imperial court before, and there is also a letter from you, saying that I am in charge of coinage, so on the way here, I went to the coinage bureaus in various places to inspect it, and found a lot of problems, especially the Taiyuan coinage bureau!" ”

"Sure enough, what's the problem with the money minting bureau in Taiyuan?" Li Xiu nodded first when he heard Liu Renliang's words, and he had already expected this.

"Qi Yu horse, the copper coin minted by my Tang Dynasty is called Kaiyuan Tongbao, and there are already regulations for the casting of copper coins in the imperial court, which must be nine copper miscellaneous ones, because of this use of pure copper to cast money, one is that the cost is too high, and the other is that the pure copper is soft, resulting in easy damage to the copper coin, so it is necessary to add lead, tin and other metals to the copper coin, but whether it is lead or tin, it must be added in accordance with the provisions of the copper nine miscellaneous one, but according to the investigation of the lower officials, the copper coins minted in Taiyuan are not in accordance with this ratio!" Liu Renliang said very seriously, and when he said the end, he also showed an angry look on his face.

"Copper is nine mixed one, could it be that the people over there in Taiyuan have reduced the proportion of copper without authorization?" Li Xiu immediately understood when he heard this, the Central Plains since the Spring and Autumn Period and the Warring States Period, copper as money, which also caused the high price of copper, so some coinage bureaus in order to make profits, they reduced the amount of copper, and the result was that the quality of the money created was poor, that is, the so-called bad coin, but after the founding of the Tang Dynasty, it was recast Kaiyuan Tongbao, and there were strict regulations on coinage, so the quality of Tongbao money was also guaranteed.

"Yes, according to my investigation, the people of the Taiyuan Minting Bureau changed the copper nine miscellaneous one to copper eight miscellaneous two without authorization, and the saved copper was corrupted into private wealth by Zhou Shaofan, who was made by Hedong Jiedu, and I was very angry after learning the news, and immediately wanted to set off to respond to him, but I didn't expect to inadvertently reveal the news, and as a result, I was detained in Taiyuan and couldn't get away!" Liu Renliang spoke again at this time, and when he talked about Zhou Shaofan, his face was even more annoyed.

"Zhou Shaofan is corrupt and perverts the law, Your Majesty has issued an order to remove him from his post as the envoy of the Hedong Festival, and ordered him to go back to Chang'an to reflect, which can be regarded as angry with you!" Although Li Xiu was also very annoyed, he thought that Zhou Shaofan had been dismissed, and he also showed a little smile at the moment.

"Zhou Shaofan was dismissed?" Liu Renliang couldn't help but show an ecstatic expression when he heard the news, although Li Shimin had already made an order, but the news had not spread for the time being, and many powerful people in Chang'an didn't know about it, let alone Liu Renliang, who had just rushed back to Chang'an.

"Yes, Zhou Shaofan is not only corrupt and perverts the law, but also detains the imperial court officials without authorization, these two items alone are enough for him to eat, and it is estimated that he will not have the opportunity to be sent as an official in the future!" Li Xiu explained with a smile, in fact, he didn't care about punishing a Zhou Shaofan Li Xiu, his real purpose was to let Li Shimin limit the power of the envoy, but Li Shimin hadn't made up his mind yet, and it was estimated that the time was still not right.

"Great, thank you for administering justice to the lower officials!" Although Liu Renliang is a square person, his brain is not stupid, and he immediately knew that it must be Li Xiu who supported him, which made His Majesty dismiss a feudal official like Zhou Shaofan, otherwise it would be difficult to bring down Zhou Shaofan with just a small six-rank official.

"You are too polite, you are now my subordinate, I naturally can't let you be wronged, not to mention that Zhou Shaofan was corrupt and perverted the law first, we also have a rational word, of course, the most important thing is to deal with it by His Majesty, so that Zhou Shaofan will be so greedy!" Li Xiu did not take the credit, but put it on Li Shimin's head, and there was no need to tell Liu Renliang the truth.

Hearing Li Xiu's last words, Liu Renliang also hurriedly praised His Majesty for his wisdom, and then the two chatted while eating, at first they did not talk about official business, but Li Xiu was very interested in Liu Renliang's official affairs in other places, and Liu Renliang also answered them one by one.

Liu Renliang was an official in the Hebei area, which was the ancient Yan land, and Li Xiu's title was Yan Guogong, and the two were also fated, and Li Xiu was most concerned about Goguryeo in the northeast, after all, the Hebei area was originally next to Goguryeo, especially Cangzhou, where Liu Renliang later served, and Goguryeo were across the sea.

According to Liu Renliang, when the Tang Dynasty was newly established, Goguryeo was still very arrogant, and from time to time it would raise troops to the south to loot, because Goguryeo was half farming and half hunting, and every winter, the grain would be insufficient, so before the winter came, the Goguryeo people would go south to grab grain, so the Hebei area not only stationed heavy troops, but also the folk atmosphere was fierce, and the militia could be seen everywhere, in case there was a small group of Goguryeo troops from the gap in the Tang army, it would be up to these militia groups to kill the enemy.

However, as the Tang Dynasty became stronger and stronger, Goguryeo did not dare to go south as blatantly as before, especially in the past few years, there seemed to be some problems within Goguryeo, and it was even defeated by the coalition forces of Silla and Baekje before, so Goguryeo's strength has also declined greatly in recent years, and it took the initiative to send envoys to the Tang Dynasty to pay tribute.

"Regular, from your point of view, is Goguryeo really a vassal to our Tang Dynasty?" Li Xiu was silent for a moment after listening to Liu Renliang's narration, and then asked again.

"Absolutely not, Goguryeo's wolf ambition is only declining now, and Silla and Baekje are vying to make friends with our Datang, which makes Goguryeo in danger of being attacked by the enemy, and the Goguryeo people are not fools, so naturally they don't dare to offend our Datang, but if their strength recovers in the future, they will definitely turn against our Datang again!" Liu Renliang said almost without hesitation.

"That's right, it seems that we are heroes, and we see the same thing!" Li Xiu couldn't help laughing when he heard this, he also thought that Goguryeo was just temporarily weak, and not only him, Li Shimin must have the same idea, so in the original history, Li Shimin would ignore everyone's opposition and send troops to attack Goguryeo twice, but although these two times laid a lot of Goguryeo's territory and eliminated a large number of Goguryeo's troops, they failed to completely destroy Goguryeo, but only laid the foundation for Li Zhi's destruction of Goguryeo later.

"By the way, if the imperial court is ready to send troops to Goguryeo, how do you think it should be fought?" I saw Li Xiu ponder for a moment, and suddenly asked Liu Renliang with interest again.