齐白石
Zhao Zhiqian (; 1829–1884) was a renowned Chinese calligrapher, seal carver and painter in the late Qing Dynasty, "the leading scholar-artist of his day." Zhao's seal carving had profound influence on the later masters, such as Wu Changshuo and Qi Baishi. He is also known under the courtesy name of Yifu (益甫) and his pseudonym ("hào") of Lengjun (冷君), which he changed to Huishu (撝叔) and Bei'an (悲盦) respectively later in his life.