"attended party" is a correct and usable phrase in written English and can be used in a variety of contexts.
For example, you could write, "John attended the birthday party and had a great time."
Abu Nizar, 55, a Baath Party member and government employee who gave only a nickname for safety, said he rarely attended party meetings any more.
State Democrats had selected their electors at a lightly attended party convention packed mostly with supporters of Sanders, the runner-up in the Democratic presidential primary race.
The nearest person to me was Anne, who had spent the last half hour walking around with a champagne glass in her hand, like a guest at the most poorly attended party ever.
As late as 2013, he attended party gatherings wearing a blue cornflower on his lapel – a plant popularised as a symbol of the pan-German movement by the Austrian politician Georg Ritter von Schönerer, whom Hannah Arendt described as Adolf Hitler's "spiritual father".
The New Yorker, April 24 , 1926 P. 9Irvin Cobb recently attended party inapartment of Cosmo Hamilton and was struck by color scheme of Old English decorations, antique furniture, etc. "I don't know much about interior decorations, but I should say this is late Rutherford B. Hayes" said he. "About that period, Irvin, we call it Old English, Curve Out", said Hamilton.
He also remained loyal to the Democratic Party, and often attended party fundraising events.
