Loudrangle, one of Sam-Son Farm's foundation mares and 1986 Canadian broodmare of the year, died of old age the night of Dec. 12. She was 27.The daughter of Quadrangle was one of a remarkable pair of yearlings bought as racing prospects for $20,000 each in 1975 by the late Ernie Samuel. The other yearling was No Class, who together with Loudrangle became the foundation of Sam-Son Farm's extraordinary Thoroughbred operation.Of the pair, Loudrangle was the racehorse. She won the 1976 Princess Elizabeth Stakes, the 1978 Mountain Laurel Stakes, and placed in four other stakes. She won nine times out of 22 starts and retired from racing with $105,804 in earnings. No Class won three races out of 29 starts, but managed to pick up a second and third in stakes company before retiring with $37.543 in earnings.They both went on to become first-class producers.Loudrangle's first foal was Tiffany Tam, a stakes winner who earned $134,270. She later produced Ruling Angel who was Canada's champion 2-year-old and horse of the year in 1986. Ruling Angel, by Vice Regent, won 10 stakes races and finished second in six more. As a juvenile, she won the Natalma Stakes (Can-III), Ontario Debutante Stakes, the Princess Elizabeth, the Nandi Stakes, and the Mazarine Stakes. She retired with $785,707 in earnings.Loudrangle also produced 1988 champion 3-year-old filly Tilt My Halo, by Halo, and stakes winners Slew of Angels, Dancing with Wings, and No Louder. She is the third dam of Mountain Angel, a leader this year in Canada's older filly or mare division.No Class, who died in 1993, produced four champions out of eight foals, including 1984 3-year-old filly Classy - n Smart, 1985 champion 2-year-old colt Grey Classic, 1987 2-year-old champion colt Regal Classic, and multiple champion and multimillionaire Sky Classic. Classy - n Smart later became 1991 broodmare of the year when her daughter Dance Smartly swept the Canadian Triple Crown."We think about them and smile, because it's an unbelievable dream to have two like them," Tammy Samuel-Balaz told the Daily Racing Form. She is Samuel's daughter and manager of the Sam-Son breeding operation in Ontario.Samuel-Balaz said Loudrangle's accomplishments as a broodmare were "unfathomable" not only because she produced champions, but because her talent has passed to other generations.