Ancelotti was lured back for a second spell at Real last summer following the departure of Zinedine Zidane, quitting Everton after 18 months at the Premier League club.
The 62-year-old won five major titles in two years at the Bernabeu between 2013 and 2015, including ‘La Decima’ – their 10th European Cup – but the Spanish title eluded him.
His first league title as a manager was with AC Milan in 2004, the club where he won the league twice as a player in the 1980s.
The Premier League with Chelsea followed in 2010, before Ancelotti lifted Ligue 1 with Paris St-Germain in 2013 and the Bundesliga with Bayern Munich in 2017.
Ancelotti’s season could end in more glory, although Real must overturn a 4-3 first-leg deficit against City at the Bernabeu.
If they do reach the final and lift the trophy Ancelotti would become the only man to win the European Cup or Champions League four times as a manager, having also led AC Milan to the trophy in 2003 and 2007.
Wales forward Gareth Bale, who will leave Real Madrid when his contract expires this summer, was absent for the team’s title celebrations.
In a tweet Bale said: “So disappointed that I’m not able to be part of the celebrations this evening due to a bad back spasm but really proud of the team for winning the title.
BBC SPORT