Xia Ning had no idea about the wedding at all. She only found out after she asked Qiao Yu that he had planned to hold a wedding for her before she got pregnant with Mengmeng. However, he delayed it because she got pregnant, but that didn't mean he had forgotten about it.
Now that the child was all grown up, they both had time to witness their love.
Zheng Ziming and the rest all knew that the invitation had been sent out a long time ago, but she was the only one who did not know. If it was not for su Jingcheng's call, she would still be in the dark.
The wedding was held in a church in London, England. One reason was because of elder SU's health, so he couldn't be worn out from the long journey. Two, Qiao Yu and Xia Ning were to be married in England.
A western wedding wasn't as troublesome as a Chinese wedding. At that time, Xia Ning was already pregnant with her and Qiao Yu's third child, so they couldn't afford to make a scene.