Under the name Princips, Barons Kvartāls was one of the founding teams of the Latvian Basketball League (LBL) in 1992.

After two seasons Princips was renamed the LainERS, making their way into Latvia's basketball history with its first American legionary Mikki Jackson, with a cheerleader show and first ever game programmes in the Latvian league.

In the last season of the LBL, in a series of five games, Barons/O!Karte lost to the next Latvian champions ASK Rīga in the semi-finals but won the fight for bronze against Liepājas Lauvas.

On 15 October 2006, the Barons/O!Karte game against Kauņas Žalgiris was attended by a record high crowd of 11,500 spectators.

The season can be considered historical for Barons/O!Karte, because for the first time Barons won the Latvian championship and FIBA EuroCup.