Most brothers knighted

Most brothers knighted
Who
Unknown
What
4 people
When
01 January 0001
George and Elizabeth Coles of Australia had four sons knighted-Sir George (1885-1977); Sir Arthur (1892-1982); Sir Kenneth (1896-1985) and Sir Edgar (1899-1981). George remarried and had a fifth son, who was also knighted-Sir Norman (1907-89).