Question: Suing for equitable distribution of a trust.?

I collected on 2 IRA's (one quite sizable) my deceased brother named me as sole beneficiary. The rest of his estate went into a trust. Now my siblings are suing me as they want what I collected on the IRA's put into the trust so as for a more equitable distribution. Is this legal? People have told me some states have equity laws regarding this.

Comments:

reload, if the code cannot be seen