Grandpa.
His grandfather's grandfather was called his great-great-grandfather.
His father's grandfather was called great-great-grandfather.
If the " old man " here was a person's name, then his grandfather could usually be called grandfather or grandfather. In some areas, there might be other titles, such as Master. If there was a mistake in the description here, he would like to ask about his grandfather's grandfather. According to the order of address for the eighteen generations of ancestors, his grandfather's grandfather was his great-grandfather. If he wanted to ask about his grandfather's father, he would address him as great-grandfather or great-grandfather.
You can use nicknames or code names for the anonymous character. That way, readers won't immediately know their true identity.
His great-grandfather's father called him Tianzu. According to the explanation of Er Ya, the father of Gaozu was called Tianzu.
His father was called the Heavenly Ancestor. Gaozu's father was called the Heavenly Ancestor. According to the records in Er Ya, the one who gave birth to him was his parents, the father of his father was his grandfather, the father of his grandfather was his great-grandfather, the father of his great-grandfather was his great-grandfather, and the father of his great-grandfather was his great-grandfather. Thus, the title of the great-great-grandfather's father was Heavenly Ancestor.
His great-great-grandfather's father was called the Heavenly Ancestor.
Finding a person's address was a challenging task for a regular detective, and it usually required the use of multiple methods. Firstly, he could use public official information, such as population statistics, electorate lists, and real estate files, to obtain clues about the address. Second, the Internet was an important channel. In Social networks and search engines, people might have shared personal information including addresses on public platforms. Third, they could obtain address information from family members, friends, colleagues, or neighbors who were close to the person concerned through unofficial communication. Fourth, visit the local community in the target's area, seek clues about the address, and contact the neighbors to ask. Finally, one could also use a web search engine to search for information about the target person, but the information obtained this way might not be comprehensive. The entire process required a combination of methods to obtain useful information under the premise of legal compliance and respect for privacy, so as to achieve the purpose of finding a personal address.
The descendants of Gaozu were called great-grandchildren.
My Grandpa My grandfather was a unique and respectable person. He was already past his seventies, and time had left obvious traces on his body. He was tall and neither fat nor thin. There were some white hairs in his hair and small wrinkles on his face, but his eyes were always bright and energetic. His grandfather had a rich life experience. He used to be a retired bank employee and had always maintained a conscientious attitude before his retirement. He was amiable and always had a smile on his face when he spoke. This smile was like the warm sun in winter, making people feel especially warm. Grandpa's love for me is meticulous. Every day, my father would send me to school, and my grandfather would always appear on time to pick me up at the place where I was dismissed from school. No matter how cold or hot it was, the wind and rain never stopped. I remember that on the way home from school in the summer, it suddenly rained heavily. Grandpa didn't hesitate to put his raincoat on me, but he was drenched. When I got home and saw him drenched, my heart ached, but he only smiled and comforted me. Grandpa is also a person who is enthusiastic about my studies. Whenever I did my homework, he would sit beside me and stroke my head with his warm hand. He told me to study hard and do my homework seriously so that I could become a useful talent in the future. His words were like a trickle, nourishing my heart and making me feel full of love and hope. Grandpa had his own hobbies. He had a strong interest in calligraphy and dreamed of becoming a calligrapher. He would write a large piece of calligraphy every day, immersed in the world of calligraphy. Sometimes, he even forgot himself. When his mother called him a few times during dinner, he ignored her and even muttered to himself that he would write for a while more. Only when his mother pulled him away did he agree to eat. His grandfather's kindness was also one of his greatest strengths. There was once when he prepared a bowl of tofu to drink, but when he came back from the toilet, he found that the tofu had been eaten. Although he was a little angry, he did not lose his temper. When he asked me and my brother who ate it, my brother stood up under his encouragement of " a person who dares to admit is a good child." Not only did Grandpa not blame my brother, but he rewarded him with a smile. Although grandpa is old, his spiritual quality is like a lighthouse, illuminating the path of my growth. I love my grandpa very much.