Proper noun
A city in northwestern Iran; capital of Qazvin province.
Qazvin Province, one of 31 provinces in Iran.
Source: en.wiktionary.orgAfter a brief sojourn at Qazvin he passed southwards to Hamadãn where Shams al-Daula, another Buwayhid emir, had established himself. Source: Internet
After a lengthy journey from Herat the two met in Qazvin where a large feast and parties were held for the event. Source: Internet