President Xi Jinping and his wife, Peng Liyuan, wave after arriving at Tegel Airport in Berlin on Tuesday for a state visit. [Photo/Xinhua]

An online post marking the 30th wedding anniversary of President Xi Jinping and his wife, Peng Liyuan, jumped in popularity on Friday after its release on a pair of mysterious social media accounts.

The post, titled "September 1, happy 30th anniversary of the marriage of Mr Xi and Ms Peng", includes anecdotes from the marriage. It appeared on the accounts on social networks WeChat and Sina Weibo.

The weibo account suiyuan zhaji (journals with Yuan) has 1.88 million followers. Like an account with the same name on WeChat, it has released stories and photos — many at close range — about Peng, mostly on her overseas trips with Xi. It is unclear who is operating the accounts — no official agency or authorized individual has taken responsibility.

"What could be used as metaphor for the love between them? A cotton quilt," the report said on Friday, telling how Peng took a quilt to Xi from Beijing to Fujian province during a cold winter in the late 1980s. The couple had a long-distance relationship from 1987 to 2007, with Peng working in Beijing while Xi served in Fujian and Zhejiang provinces and Shanghai.

The weibo report, forwarded more than 800 times, received over 1,500 likes on Friday afternoon. On WeChat, it had been read more than 100,000 times a few hours after its release.

"It's the best love I have ever seen. I wish our most beautiful sister a lovely, happy forever," WeChat user Wang Xiaoxia said, drawing more than 1,500 likes.