Constantine's son, Leo IV (775–80), was less rigorous, and for a time tried to mediate between the factions. When he died, his wife Irene took power as regent for her son, Constantine VI (780–97). Though icon veneration does not seem to have been a major priority for the regency government, Irene called an ecumenical council a year after Leo's death, which restored image veneration. This may have been an effort to secure closer and more cordial relations between Constantinople and Rome.