The 18th-century painting "Portrait of a Lady" was stolen by a high-ranking Nazi in the 1940s. Last year, it surfaced in a real estate listing in Argentina.
The government insisted the funeral was a private affair, even as government ministers attended and state-controlled news media lavished praise on the convicted war criminal.
A blowout win by the far-right Alternative for Germany party in a state election has revealed a split among voters about whether to uphold a decades-old strategy for sidelining extremists.
The Trump administration had let the peace process enter such a freeze that a trip to Kyiv was just an initial step. Any new talks will happen alongside escalating fighting.
Israel has stepped up its attacks targeting Hezbollah after capturing a strategic ridge last week, spurring worries that it will prolong its occupation of Lebanese territory.