The 15-time UEFA Champions League winners, Real Madrid, won in 2023/24, 2021/22, 2017/18, 2016/17, 2015/16, 2013/14, 2001/2, 199/00, 1997/98, 1965/66, 1959/60, 1958/59, 1957/58, 1956/57 and 1955/56 set another record on 4th March 2025 after beating Atlético Madrid 2-1 at home with goal from Rodrygo and Diaz to be first club to reach 300 Champions League/European Cup wins.

Above all this record, there is a club that never lost to Real Madrid, and Madrid has never scored against in the history of the Champions League as of today. The club’s name is (Arsenal). The Gunners both teams met in the 2005/06 Round of 16. The first leg ended in a goalless draw and the second leg ended 1-0 in favor of Arsenal.

the Kings (Real Madrid) have also experienced the worst losses in the UEFA league. Here are the worst losses for Real Madrid in Europe in the Champions League era, which began in 1992/93 after the rebranding from the old European Cup.
The match between Man City and Real Madrid on May 17, 2023, the semi-final second leg at the Etihad Stadium, ended 4-0 in favor of City.
Liverpool 4 vs 0 Real Madrid at Anfield second leg, Round of 16, played on March 10, 2009.
Sept. 18, 2019 PSG 3-0 Real Madrid Group Stage at Parc des Princes (Paris, France)
The Santiago Bernabéu 1-4 loss against Ajax on March 5, 2019, Round of 16 2nd leg
Dec 12, 2018 Real Madrid 0-3 CSKA Moscow Group Stage Santiago Bernabéu
April 24, 2013, B. Dortmund 4-1 Real Madrid Semi-final 1st leg at Westfalenstadion (Dortmund, Germany)
Sept. 13, 2005 Lyon 3-0 Real Madrid Group Stage at Stade de Gerland (Lyon, France)
Sept. 15, 2004 B. Leverkusen 3-0 Real Madrid Group Stage at BayArena (Leverkusen, Germany)
March 8, 2000, B. Munich 4-1 Real Madrid 2nd Group Stage Olympiastadion and 2-4 home loss against Bayern on 29 February 2000.

In the history of the UEFA Champions League, a total of thirteen clubs have won the tournament multiple times: Real Madrid 15, Milan six times came in 1969, 1989, 1990, 1994, 2003 and 2007, Bayern Munich winning their sixth title in the 2020, Liverpool six times, 1977, 1978, 1981, 1984, 2005, 2019, Benfica 2 time 1961, 1962,
Inter Milan three times, 1964, 1965, and 2010, Ajax four times, 1971,
1972, 1973 and 1995Nottingham Forest two times, 1979 and 1980, Juventus two times, 1985, 1996, Manchester United three time, 1968, 1999, 2008, Porto two times 1987and 2004, Barcelona five times 1992, 2006, 2009, 2011and 2015, and Chelsea two times 2012 and 2021.

While 10 teams have won it in a single time. Here is the list:

Celtic 1966/67
PSV 1987/88
Fc sb 1985/86
Cravens zvezda 1990/91
Harnburg 1982/83
Aston Villa 1981/82
Marseille 1992/93
Feyenoor 1969/70
B. Dortmud 1996/97
Manchester City 2022/23