As the central figure and most powerful martial artist among the original Five Greats of the Southern Sung Dynasty era, Central Divinity Wong Chung Yeung had various dealings with the other four Greats beyond their famous gathering at the First Mt. Hua Sword Tournament. Wong Chung Yeung consulted with East Heretic Wong Yerk See to discover the secret of how Lam Chiu Ying was able to write on stone with her finger. Wong Chung Yeung also famously exchanged martial arts skills with South Emperor Deun Chi Hing in Dali Kingdom (leading to Chow Bak Tung's affair with Ying Goo). In his last act before his death, Wong Chung Yeung also foiled West Poison Au Yeung Fung's first attempt to acquire the 9 Yum Jen Ging and crippled Au Yeung's martial arts for several years.
Outside of the Mt. Hua Sword Tournament, however, Wong Chung Yeung seemed to have no real dealings with North Beggar Hung 7 Gung. I'm surprised that these two didn't get together more often. Among the Five Greats, Central Divinity and North Beggar were the most straightforward heroes. Moreover, the organizations they led (the Cheun Jen Sect and the Beggar's Union, respectively) were the most active wulin organizations in resisting the Jin Empire. They reasonably should have met up more, but apparently did not.