Chris Brown is furious that his daughter Royalty, 13 months, has been spending time with his mother as it meant he couldn't be with her. The Loyal hitmaker has filed to have his paternity over 13-month-old Royalty established so he can go to court over custody and child support arrangements with the tot's mother, Nia Guzman, and insiders claim he made the move after his bid to see the youngster this week was blocked because she was with her paternal grandmother Joyce Hawkins - who Brown has a strained relationship with - in Virginia.According to TMZ, Guzman insists this is the only time she has ever stopped the 26-year-old singer from seeing his daughter, but it seems that was enough for him to make the decision to take legal action.While the model had been seeking around $15,000 a month in child support, Brown had wanted to pay $2,500 but they had reportedly agreed on $10,000 a month, effective from this month.However, the Yeah 3x hitmaker also wants a court to now make a ruling on the figure, despite Guzman not wanting the case to go down the legal route as she didn't want to be made out to be a "gold digger".Last weekend, Brown - who was convicted of assaulting then-girlfriend Rihanna in 2009 and subsequently endured a number of legal rows while on probation - paid tribute to his little girl as he spoke of how his life has changed.He said "A lot has changed in my life, a lot of mistakes, a lot of lessons learned. The best thing, I'm most thankful for is my daughter."At the end of the day, love is love."The Ayo singer learned he was Royalty's father months after her birth and he and his on/off girlfriend Karrueche Tran split up in March after she found out that he fathered the child while they were together...