You may be talking about Guan Tong. He was born in the late Tang Dynasty and lived in the Five Dynasties period.
Guan Tongtong (about 907-960) was a native of Chang'an (now Xi'an, Shaanxi). Later Liang painter of the Five Dynasties. One is Guan Tong and Guan Xu. The year of birth and death is unknown. In his early years of painting landscapes, he learned from Jing Hao and studied hard, often forgetting to eat and sleep. The landscapes he painted can quite express the characteristics and majestic momentum of the mountains and rivers in the Guan-Shaanxi area. Mi Fu of the Northern Song Dynasty said that he "gongguanhe River's power, the peaks and ridges are less delicate". Guan Tong was able to surpass Jing Hao's pattern in the conception and creation of landscape paintings, and showed his own unique style, which is called Guan Family Landscape. His painting style is simple, with vivid and prominent images, and concise and moving. He is known as "the simpler the pen, the stronger the spirit, the fewer the scenes, the longer the meaning." Guan Tongxi's life scenes of autumn mountains, cold forests, villages, wild ferries, secluded people, and fishing villages and mountain stations can make the viewer feel as if they are actually there, "as leisurely as in the wind and snow of Baqiao, or when smelling apes in the Three Gorges." , with strong artistic appeal. Commentators say that his achievements in his later years were more outstanding than those of Jing Hao, and he was a powerful successor of Jing Hao's painting school. Together with Jing Hao, he was also known as Jingguan. People in the Northern Song Dynasty listed him as one of the "Three Families" along with Li Cheng and Fan Kuan, which had great influence. Guan Tong's handed down works include "Mountains Waiting for Ferry" and "Guanshan Travels", etc. "Mountains Waiting to Ferry" depicts people waiting to cross the waterside under the mountains. In the painting, the mountains stand tall, the rocks are solid, and the atmosphere is majestic and desolate. It is similar to the Song Dynasty's discussion of the Guantong landscape: "sitting on a sudden dangerous peak, looking down at a poor valley, the scenery is outstanding." "Those who are steep and steep, (Guan) can be made in one stroke" ("Supplement to Famous Paintings of the Five Dynasties") have similar styles. "Travel in Guanshan" depicts a journey in a barren mountain in late autumn. The outline is concise and powerful, the scenery is profound, and the reality is full of changes. It is interspersed with various character activities, making the picture more full of life.
According to records from the Song Dynasty, Guan Tong was not good at painting figures, and most of the figures in his paintings were painted by Hu Yi. Hu Yi, also known as Pengyun, was a painter of the Five Dynasties. He was mainly active in the Later Liang Dynasty. He was good at painting Buddhist and Taoist figures. He could also paint buildings, carriages and horses, and he was also good at imitating ancient times.
"Xuanhe Painting Book" records 94 paintings in the imperial collection, including "Autumn Mountain Picture", "River and Mountain Fishing Boat Picture", and "Spring Mountain Picture of Xiao Temple". His handed down works include the "Mountain Stream Waiting for Ferry" scroll and the "Guanshan Travel" scroll, etc. It is said that he made it, and the pictures are recorded in "Three Hundred Famous Paintings in the Forbidden City".