What is the fine-grained topic of the following text: After 1760 he was tutored by Catherine’s close adviser, the learned diplomat Nikita Ivanovich Panin, but the boy never developed good relations with his mother, who wrested the imperial crown from her mentally feeble husband in 1762 and, afterward, consistently refused to allow Paul to participate actively in government affairs. Only return the topic.
Paul I of Russia's relationship with his mother and restricted involvement in government affairs.